38685804 has 12 divisors (see below), whose sum is σ = 90266904. Its totient is φ = 12895264.

The previous prime is 38685763. The next prime is 38685809. The reversal of 38685804 is 40858683.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×38685804² = 2993182862252832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38685809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611897 + ... + 1611920.

It is an arithmetic number, because the mean of its divisors is an integer number (7522242).

Almost surely, 2^38685804 is an apocalyptic number.

It is an amenable number.

38685804 is an abundant number, since it is smaller than the sum of its proper divisors (51581100).

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

38685804 is a wasteful number, since it uses less digits than its factorization.

38685804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223824 (or 3223822 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 38685804 is about 6219.7913148272. The cubic root of 38685804 is about 338.2079996075.

The spelling of 38685804 in words is "thirty-eight million, six hundred eighty-five thousand, eight hundred four".