38190988 has 36 divisors (see below), whose sum is σ = 77347480. Its totient is φ = 16441920.

The previous prime is 38190983. The next prime is 38190989. The reversal of 38190988 is 88909183.

It is a super-2 number, since 2×38190988² = 2917103128832288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38190983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7120 + ... + 11272.

Almost surely, 2^38190988 is an apocalyptic number.

38190988 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38190988 is an abundant number, since it is smaller than the sum of its proper divisors (39156492).

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

38190988 is a wasteful number, since it uses less digits than its factorization.

38190988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198 (or 4185 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 38190988 is about 6179.8857594619. The cubic root of 38190988 is about 336.7598426327.

The spelling of 38190988 in words is "thirty-eight million, one hundred ninety thousand, nine hundred eighty-eight".