38553690 has 48 divisors (see below), whose sum is σ = 107639712. Its totient is φ = 8811936.

The previous prime is 38553661. The next prime is 38553701. The reversal of 38553690 is 9635583.

It is a super-2 number, since 2×38553690² = 2972774025232200, which contains 22 as substring.

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, 11644 + ... + 14583.

It is an arithmetic number, because the mean of its divisors is an integer number (2242494).

Almost surely, 2^38553690 is an apocalyptic number.

38553690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38553690 is an abundant number, since it is smaller than the sum of its proper divisors (69086022).

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

38553690 is a wasteful number, since it uses less digits than its factorization.

38553690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26251 (or 26244 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 38553690 is about 6209.1617791776. The cubic root of 38553690 is about 337.8225613025.

The spelling of 38553690 in words is "thirty-eight million, five hundred fifty-three thousand, six hundred ninety".