16940660 has 24 divisors (see below), whose sum is σ = 38810016. Its totient is φ = 6160160.

The previous prime is 16940639. The next prime is 16940689. The reversal of 16940660 is 6604961.

It is a super-2 number, since 2×16940660² = 573971922471200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38282 + ... + 38721.

It is an arithmetic number, because the mean of its divisors is an integer number (1617084).

Almost surely, 2^16940660 is an apocalyptic number.

16940660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16940660 is an abundant number, since it is smaller than the sum of its proper divisors (21869356).

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

16940660 is a wasteful number, since it uses less digits than its factorization.

16940660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77023 (or 77021 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 16940660 is about 4115.9033030430. The cubic root of 16940660 is about 256.8286341133.

The spelling of 16940660 in words is "sixteen million, nine hundred forty thousand, six hundred sixty".