38287904 has 24 divisors (see below), whose sum is σ = 75869388. Its totient is φ = 19019520.

The previous prime is 38287901. The next prime is 38287913. The reversal of 38287904 is 40978283.

It can be written as a sum of positive squares in 2 ways, for example, as 37797904 + 490000 = 6148^2 + 700^2 .

It is not an unprimeable number, because it can be changed into a prime (38287901) 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, 1214 + ... + 8834.

Almost surely, 2^38287904 is an apocalyptic number.

It is an amenable number.

38287904 is a deficient number, since it is larger than the sum of its proper divisors (37581484).

38287904 is a wasteful number, since it uses less digits than its factorization.

38287904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788 (or 7780 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 38287904 is about 6187.7220364202. The cubic root of 38287904 is about 337.0444634280.

The spelling of 38287904 in words is "thirty-eight million, two hundred eighty-seven thousand, nine hundred four".