20468912 has 10 divisors (see below), whose sum is σ = 39658548. Its totient is φ = 10234448.

The previous prime is 20468911. The next prime is 20468939. The reversal of 20468912 is 21986402.

It is not an unprimeable number, because it can be changed into a prime (20468911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639638 + ... + 639669.

Almost surely, 2^20468912 is an apocalyptic number.

It is an amenable number.

20468912 is a deficient number, since it is larger than the sum of its proper divisors (19189636).

20468912 is a wasteful number, since it uses less digits than its factorization.

20468912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279315 (or 1279309 counting only the distinct ones).

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

The square root of 20468912 is about 4524.2581712365. The cubic root of 20468912 is about 273.5467669994.

The spelling of 20468912 in words is "twenty million, four hundred sixty-eight thousand, nine hundred twelve".