38513844 has 36 divisors (see below), whose sum is σ = 97564740. Its totient is φ = 12810240.

The previous prime is 38513837. The next prime is 38513897. The reversal of 38513844 is 44831583.

38513844 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 2 ways, for example, as 28515600 + 9998244 = 5340^2 + 3162^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 38513799 and 38513808.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 22242 + ... + 23910.

Almost surely, 2^38513844 is an apocalyptic number.

It is an amenable number.

38513844 is an abundant number, since it is smaller than the sum of its proper divisors (59050896).

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

38513844 is a wasteful number, since it uses less digits than its factorization.

38513844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320 (or 2315 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 38513844 is about 6205.9523040384. The cubic root of 38513844 is about 337.7061390888.

The spelling of 38513844 in words is "thirty-eight million, five hundred thirteen thousand, eight hundred forty-four".