17990952 has 32 divisors (see below), whose sum is σ = 51403200. Its totient is φ = 5140224.

The previous prime is 17990941. The next prime is 17990953. The reversal of 17990952 is 25909971.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (17990953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53377 + ... + 53712.

It is an arithmetic number, because the mean of its divisors is an integer number (1606350).

Almost surely, 2^17990952 is an apocalyptic number.

17990952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17990952 is an abundant number, since it is smaller than the sum of its proper divisors (33412248).

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

17990952 is a wasteful number, since it uses less digits than its factorization.

17990952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107105 (or 107101 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 17990952 is about 4241.5742360591. The cubic root of 17990952 is about 262.0302200831.

The spelling of 17990952 in words is "seventeen million, nine hundred ninety thousand, nine hundred fifty-two".