16980494 has 4 divisors (see below), whose sum is σ = 25470744. Its totient is φ = 8490246.

The previous prime is 16980493. The next prime is 16980499. The reversal of 16980494 is 49408961.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16980493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4245122 + ... + 4245125.

It is an arithmetic number, because the mean of its divisors is an integer number (6367686).

Almost surely, 2^16980494 is an apocalyptic number.

16980494 is a deficient number, since it is larger than the sum of its proper divisors (8490250).

16980494 is an equidigital number, since it uses as much as digits as its factorization.

16980494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490249.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 16980494 is about 4120.7394967408. The cubic root of 16980494 is about 257.0297774699.

The spelling of 16980494 in words is "sixteen million, nine hundred eighty thousand, four hundred ninety-four".