20672924 has 12 divisors (see below), whose sum is σ = 36529584. Its totient is φ = 10235904.

The previous prime is 20672923. The next prime is 20672941. The reversal of 20672924 is 42927602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20672921) 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, 24677 + ... + 25500.

It is an arithmetic number, because the mean of its divisors is an integer number (3044132).

Almost surely, 2^20672924 is an apocalyptic number.

It is an amenable number.

20672924 is a deficient number, since it is larger than the sum of its proper divisors (15856660).

20672924 is a wasteful number, since it uses less digits than its factorization.

20672924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50284 (or 50282 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20672924 is about 4546.7487284872. The cubic root of 20672924 is about 274.4525704851.

The spelling of 20672924 in words is "twenty million, six hundred seventy-two thousand, nine hundred twenty-four".