16980980 has 12 divisors (see below), whose sum is σ = 35660100. Its totient is φ = 6792384.

The previous prime is 16980941. The next prime is 16980983. The reversal of 16980980 is 8908961.

It can be written as a sum of positive squares in 2 ways, for example, as 1833316 + 15147664 = 1354^2 + 3892^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16980983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424505 + ... + 424544.

It is an arithmetic number, because the mean of its divisors is an integer number (2971675).

Almost surely, 2^16980980 is an apocalyptic number.

16980980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16980980 is an abundant number, since it is smaller than the sum of its proper divisors (18679120).

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

16980980 is a wasteful number, since it uses less digits than its factorization.

16980980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849058 (or 849056 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 16980980 is about 4120.7984663169. The cubic root of 16980980 is about 257.0322296027.

The spelling of 16980980 in words is "sixteen million, nine hundred eighty thousand, nine hundred eighty".