16981058 has 16 divisors (see below), whose sum is σ = 26066040. Its totient is φ = 8294400.

The previous prime is 16981057. The next prime is 16981073. The reversal of 16981058 is 85018961.

It can be written as a sum of positive squares in 4 ways, for example, as 3636649 + 13344409 = 1907^2 + 3653^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16981057) 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, 21698 + ... + 22466.

Almost surely, 2^16981058 is an apocalyptic number.

16981058 is a deficient number, since it is larger than the sum of its proper divisors (9084982).

16981058 is a wasteful number, since it uses less digits than its factorization.

16981058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 16981058 is about 4120.8079304913. The cubic root of 16981058 is about 257.0326231506.

The spelling of 16981058 in words is "sixteen million, nine hundred eighty-one thousand, fifty-eight".