20873392 has 20 divisors (see below), whose sum is σ = 40539816. Its totient is φ = 10411520.

The previous prime is 20873389. The next prime is 20873393. The reversal of 20873392 is 29337802.

It is not an unprimeable number, because it can be changed into a prime (20873393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6528 + ... + 9184.

Almost surely, 2^20873392 is an apocalyptic number.

It is an amenable number.

20873392 is a deficient number, since it is larger than the sum of its proper divisors (19666424).

20873392 is a wasteful number, since it uses less digits than its factorization.

20873392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156 (or 3150 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 20873392 is about 4568.7407455447. The cubic root of 20873392 is about 275.3368522292.

The spelling of 20873392 in words is "twenty million, eight hundred seventy-three thousand, three hundred ninety-two".