20886472 has 64 divisors (see below), whose sum is σ = 44712000. Its totient is φ = 9086976.

The previous prime is 20886469. The next prime is 20886479. The reversal of 20886472 is 27468802.

It is not an unprimeable number, because it can be changed into a prime (20886479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152388 + ... + 152524.

It is an arithmetic number, because the mean of its divisors is an integer number (698625).

Almost surely, 2^20886472 is an apocalyptic number.

It is an amenable number.

20886472 is an abundant number, since it is smaller than the sum of its proper divisors (23825528).

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

20886472 is a wasteful number, since it uses less digits than its factorization.

20886472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 20886472 is about 4570.1719880110. The cubic root of 20886472 is about 275.3943521320.

The spelling of 20886472 in words is "twenty million, eight hundred eighty-six thousand, four hundred seventy-two".