20472612 has 24 divisors (see below), whose sum is σ = 48935712. Its totient is φ = 6657600.

The previous prime is 20472611. The next prime is 20472619. The reversal of 20472612 is 21627402.

It is not an unprimeable number, because it can be changed into a prime (20472611) 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, 20314 + ... + 21297.

It is an arithmetic number, because the mean of its divisors is an integer number (2038988).

Almost surely, 2^20472612 is an apocalyptic number.

It is an amenable number.

20472612 is an abundant number, since it is smaller than the sum of its proper divisors (28463100).

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

20472612 is a wasteful number, since it uses less digits than its factorization.

20472612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41659 (or 41657 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20472612 is about 4524.6670595747. The cubic root of 20472612 is about 273.5632482867.

The spelling of 20472612 in words is "twenty million, four hundred seventy-two thousand, six hundred twelve".