38631744 has 84 divisors (see below), whose sum is σ = 113166144. Its totient is φ = 12594432.

The previous prime is 38631709. The next prime is 38631763. The reversal of 38631744 is 44713683.

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

It is a junction number, because it is equal to n+sod(n) for n = 38631699 and 38631708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26359 + ... + 27785.

It is an arithmetic number, because the mean of its divisors is an integer number (1347216).

Almost surely, 2^38631744 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 38631744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56583072).

38631744 is an abundant number, since it is smaller than the sum of its proper divisors (74534400).

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

38631744 is a wasteful number, since it uses less digits than its factorization.

38631744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492 (or 1479 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 38631744 is about 6215.4439905770. The cubic root of 38631744 is about 338.0503875489.

The spelling of 38631744 in words is "thirty-eight million, six hundred thirty-one thousand, seven hundred forty-four".