16624920 has 64 divisors (see below), whose sum is σ = 53716320. Its totient is φ = 4091904.

The previous prime is 16624919. The next prime is 16624939. The reversal of 16624920 is 2942661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3769 + ... + 6888.

Almost surely, 2^16624920 is an apocalyptic number.

16624920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16624920 is an abundant number, since it is smaller than the sum of its proper divisors (37091400).

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

16624920 is a wasteful number, since it uses less digits than its factorization.

16624920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10684 (or 10680 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 16624920 is about 4077.3667973338. The cubic root of 16624920 is about 255.2230267185.

The spelling of 16624920 in words is "sixteen million, six hundred twenty-four thousand, nine hundred twenty".