17930980 has 12 divisors (see below), whose sum is σ = 37655100. Its totient is φ = 7172384.

The previous prime is 17930959. The next prime is 17930999. The reversal of 17930980 is 8903971.

It can be written as a sum of positive squares in 2 ways, for example, as 5271616 + 12659364 = 2296^2 + 3558^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448255 + ... + 448294.

It is an arithmetic number, because the mean of its divisors is an integer number (3137925).

Almost surely, 2^17930980 is an apocalyptic number.

17930980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17930980 is an abundant number, since it is smaller than the sum of its proper divisors (19724120).

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

17930980 is a wasteful number, since it uses less digits than its factorization.

17930980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896558 (or 896556 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 17930980 is about 4234.4987897035. The cubic root of 17930980 is about 261.7387407898.

The spelling of 17930980 in words is "seventeen million, nine hundred thirty thousand, nine hundred eighty".