16980390 has 48 divisors (see below), whose sum is σ = 50457888. Its totient is φ = 3881088.

The previous prime is 16980329. The next prime is 16980391. The reversal of 16980390 is 9308961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16980391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12847 + ... + 14106.

It is an arithmetic number, because the mean of its divisors is an integer number (1051206).

Almost surely, 2^16980390 is an apocalyptic number.

16980390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16980390 is an abundant number, since it is smaller than the sum of its proper divisors (33477498).

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

16980390 is a wasteful number, since it uses less digits than its factorization.

16980390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26973 (or 26970 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16980390 is about 4120.7268776273. The cubic root of 16980390 is about 257.0292527276.

The spelling of 16980390 in words is "sixteen million, nine hundred eighty thousand, three hundred ninety".