38826990 has 48 divisors (see below), whose sum is σ = 105344928. Its totient is φ = 9903168.

The previous prime is 38826961. The next prime is 38827001. The reversal of 38826990 is 9962883.

38826990 is a `hidden beast` number, since 388 + 269 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7309 + ... + 11448.

It is an arithmetic number, because the mean of its divisors is an integer number (2194686).

Almost surely, 2^38826990 is an apocalyptic number.

38826990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38826990 is an abundant number, since it is smaller than the sum of its proper divisors (66517938).

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

38826990 is a wasteful number, since it uses less digits than its factorization.

38826990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18793 (or 18790 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 38826990 is about 6231.1307160097. The cubic root of 38826990 is about 338.6189364210.

The spelling of 38826990 in words is "thirty-eight million, eight hundred twenty-six thousand, nine hundred ninety".