38712744 has 72 divisors (see below), whose sum is σ = 121976010. Its totient is φ = 11059776.

The previous prime is 38712743. The next prime is 38712761. The reversal of 38712744 is 44721783.

It is a happy number.

38712744 is a `hidden beast` number, since 387 + 1 + 274 + 4 = 666.

38712744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32148900 + 6563844 = 5670^2 + 2562^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 38712699 and 38712708.

It is not an unprimeable number, because it can be changed into a prime (38712743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1959 + ... + 9014.

Almost surely, 2^38712744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38712744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60988005).

38712744 is an abundant number, since it is smaller than the sum of its proper divisors (83263266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38712744 is a wasteful number, since it uses less digits than its factorization.

38712744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10999 (or 10985 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 38712744 is about 6221.9566054417. The cubic root of 38712744 is about 338.2864884277.

It can be divided in two parts, 387 and 12744, that added together give a palindrome (13131).

The spelling of 38712744 in words is "thirty-eight million, seven hundred twelve thousand, seven hundred forty-four".