38728572 has 48 divisors (see below), whose sum is σ = 94432800. Its totient is φ = 12337920.

The previous prime is 38728553. The next prime is 38728609. The reversal of 38728572 is 27582783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37422 + ... + 38442.

It is an arithmetic number, because the mean of its divisors is an integer number (1967350).

Almost surely, 2^38728572 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 38728572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47216400).

38728572 is an abundant number, since it is smaller than the sum of its proper divisors (55704228).

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

38728572 is a wasteful number, since it uses less digits than its factorization.

38728572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1164 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 38728572 is about 6223.2284226115. The cubic root of 38728572 is about 338.3325858143.

The spelling of 38728572 in words is "thirty-eight million, seven hundred twenty-eight thousand, five hundred seventy-two".