38867904 has 112 divisors (see below), whose sum is σ = 116067840. Its totient is φ = 12752640.

The previous prime is 38867897. The next prime is 38867923. The reversal of 38867904 is 40976883.

It is a happy number.

It is a super-2 number, since 2×38867904² = 3021427922706432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38867904.

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, 143289 + ... + 143559.

It is an arithmetic number, because the mean of its divisors is an integer number (1036320).

Almost surely, 2^38867904 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 38867904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58033920).

38867904 is an abundant number, since it is smaller than the sum of its proper divisors (77199936).

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

38867904 is a wasteful number, since it uses less digits than its factorization.

38867904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 38867904 is about 6234.4128833435. The cubic root of 38867904 is about 338.7378347415.

The spelling of 38867904 in words is "thirty-eight million, eight hundred sixty-seven thousand, nine hundred four".