16820924 has 24 divisors (see below), whose sum is σ = 30336768. Its totient is φ = 8156720.

The previous prime is 16820897. The next prime is 16820929. The reversal of 16820924 is 42902861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16820929) 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, 24287 + ... + 24969.

It is an arithmetic number, because the mean of its divisors is an integer number (1264032).

Almost surely, 2^16820924 is an apocalyptic number.

It is an amenable number.

16820924 is a deficient number, since it is larger than the sum of its proper divisors (13515844).

16820924 is a wasteful number, since it uses less digits than its factorization.

16820924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 16820924 is about 4101.3319787601. The cubic root of 16820924 is about 256.2221176087. Note that the first 3 decimals are identical.

The spelling of 16820924 in words is "sixteen million, eight hundred twenty thousand, nine hundred twenty-four".