38657912 has 8 divisors (see below), whose sum is σ = 72483600. Its totient is φ = 19328952.

The previous prime is 38657909. The next prime is 38657929. The reversal of 38657912 is 21975683.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 38657912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2416112 + ... + 2416127.

It is an arithmetic number, because the mean of its divisors is an integer number (9060450).

Almost surely, 2^38657912 is an apocalyptic number.

It is an amenable number.

38657912 is a deficient number, since it is larger than the sum of its proper divisors (33825688).

38657912 is a wasteful number, since it uses less digits than its factorization.

38657912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832245 (or 4832241 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 38657912 is about 6217.5487131184. The cubic root of 38657912 is about 338.1266987636.

The spelling of 38657912 in words is "thirty-eight million, six hundred fifty-seven thousand, nine hundred twelve".