16994920 has 32 divisors (see below), whose sum is σ = 38361600. Its totient is φ = 6776128.

The previous prime is 16994909. The next prime is 16994941. The reversal of 16994920 is 2949961.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 18717 + ... + 19603.

It is an arithmetic number, because the mean of its divisors is an integer number (1198800).

Almost surely, 2^16994920 is an apocalyptic number.

16994920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16994920 is an abundant number, since it is smaller than the sum of its proper divisors (21366680).

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

16994920 is a wasteful number, since it uses less digits than its factorization.

16994920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377 (or 1373 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 16994920 is about 4122.4895391013. The cubic root of 16994920 is about 257.1025445329.

The spelling of 16994920 in words is "sixteen million, nine hundred ninety-four thousand, nine hundred twenty".