20673264 has 40 divisors (see below), whose sum is σ = 53746560. Its totient is φ = 6847168.

The previous prime is 20673253. The next prime is 20673271. The reversal of 20673264 is 46237602.

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, 6727 + ... + 9305.

It is an arithmetic number, because the mean of its divisors is an integer number (1343664).

Almost surely, 2^20673264 is an apocalyptic number.

20673264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20673264 is an abundant number, since it is smaller than the sum of its proper divisors (33073296).

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

20673264 is a wasteful number, since it uses less digits than its factorization.

20673264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2751 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 20673264 is about 4546.7861176880. The cubic root of 20673264 is about 274.4540750838.

The spelling of 20673264 in words is "twenty million, six hundred seventy-three thousand, two hundred sixty-four".