17990960 has 40 divisors (see below), whose sum is σ = 45049200. Its totient is φ = 6642432.

The previous prime is 17990957. The next prime is 17990969. The reversal of 17990960 is 6909971.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (17990969) 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, 7610 + ... + 9689.

It is an arithmetic number, because the mean of its divisors is an integer number (1126230).

Almost surely, 2^17990960 is an apocalyptic number.

17990960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17990960 is an abundant number, since it is smaller than the sum of its proper divisors (27058240).

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

17990960 is a wasteful number, since it uses less digits than its factorization.

17990960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17325 (or 17319 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 17990960 is about 4241.5751791050. The cubic root of 17990960 is about 262.0302589219.

Adding to 17990960 its sum of digits (41), we get a triangular number (17991001 = T₅₉₉₈).

The spelling of 17990960 in words is "seventeen million, nine hundred ninety thousand, nine hundred sixty".