38729688 has 32 divisors (see below), whose sum is σ = 97474560. Its totient is φ = 12823200.

The previous prime is 38729687. The next prime is 38729701. The reversal of 38729688 is 88692783.

It is a self number, because there is not a number n which added to its sum of digits gives 38729688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38729687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720 + ... + 8967.

It is an arithmetic number, because the mean of its divisors is an integer number (3046080).

Almost surely, 2^38729688 is an apocalyptic number.

It is an amenable number.

38729688 is an abundant number, since it is smaller than the sum of its proper divisors (58744872).

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

38729688 is a wasteful number, since it uses less digits than its factorization.

38729688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10847 (or 10843 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 38729688 is about 6223.3180860374. The cubic root of 38729688 is about 338.3358355730.

The spelling of 38729688 in words is "thirty-eight million, seven hundred twenty-nine thousand, six hundred eighty-eight".