16936640 has 56 divisors (see below), whose sum is σ = 46097952. Its totient is φ = 5806080.

The previous prime is 16936637. The next prime is 16936669. The reversal of 16936640 is 4663961.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 16936640.

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, 1541 + ... + 6020.

Almost surely, 2^16936640 is an apocalyptic number.

16936640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16936640 is an abundant number, since it is smaller than the sum of its proper divisors (29161312).

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

16936640 is an equidigital number, since it uses as much as digits as its factorization.

16936640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585 (or 7575 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 16936640 is about 4115.4149244031. The cubic root of 16936640 is about 256.8083174553.

It can be divided in two parts, 16936 and 640, that added together give a cube (17576 = 26³).

The spelling of 16936640 in words is "sixteen million, nine hundred thirty-six thousand, six hundred forty".