38928736 has 144 divisors (see below), whose sum is σ = 101524752. Its totient is φ = 14515200.

The previous prime is 38928707. The next prime is 38928763. The reversal of 38928736 is 63782983.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 638146 + ... + 638206.

It is an arithmetic number, because the mean of its divisors is an integer number (705033).

Almost surely, 2^38928736 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 38928736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50762376).

38928736 is an abundant number, since it is smaller than the sum of its proper divisors (62596016).

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

38928736 is a wasteful number, since it uses less digits than its factorization.

38928736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 118 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 38928736 is about 6239.2897031633. The cubic root of 38928736 is about 338.9144617011.

The spelling of 38928736 in words is "thirty-eight million, nine hundred twenty-eight thousand, seven hundred thirty-six".