38625290 has 32 divisors (see below), whose sum is σ = 79842240. Its totient is φ = 13305600.

The previous prime is 38625281. The next prime is 38625319. The reversal of 38625290 is 9252683.

It is a self number, because there is not a number n which added to its sum of digits gives 38625290.

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, 7151 + ... + 11330.

It is an arithmetic number, because the mean of its divisors is an integer number (2495070).

Almost surely, 2^38625290 is an apocalyptic number.

38625290 is an abundant number, since it is smaller than the sum of its proper divisors (41216950).

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

38625290 is a wasteful number, since it uses less digits than its factorization.

38625290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18518.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 38625290 is about 6214.9247783058. The cubic root of 38625290 is about 338.0315610737.

The spelling of 38625290 in words is "thirty-eight million, six hundred twenty-five thousand, two hundred ninety".