20827272 has 16 divisors (see below), whose sum is σ = 52068240. Its totient is φ = 6942416.

The previous prime is 20827271. The next prime is 20827277. The reversal of 20827272 is 27272802.

It is not an unprimeable number, because it can be changed into a prime (20827271) 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, 433878 + ... + 433925.

It is an arithmetic number, because the mean of its divisors is an integer number (3254265).

Almost surely, 2^20827272 is an apocalyptic number.

It is an amenable number.

20827272 is an abundant number, since it is smaller than the sum of its proper divisors (31240968).

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

20827272 is a wasteful number, since it uses less digits than its factorization.

20827272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867812 (or 867808 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 20827272 is about 4563.6906117746. The cubic root of 20827272 is about 275.1339160439.

The spelling of 20827272 in words is "twenty million, eight hundred twenty-seven thousand, two hundred seventy-two".