20072264 has 16 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 10008400.

The previous prime is 20072209. The next prime is 20072267. The reversal of 20072264 is 46227002.

It is not an unprimeable number, because it can be changed into a prime (20072267) 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, 212 + ... + 6339.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^20072264 is an apocalyptic number.

It is an amenable number.

20072264 is a deficient number, since it is larger than the sum of its proper divisors (17667256).

20072264 is a wasteful number, since it uses less digits than its factorization.

20072264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940 (or 6936 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20072264 is about 4480.2080308843. The cubic root of 20072264 is about 271.7682931579.

Adding to 20072264 its reverse (46227002), we get a palindrome (66299266).

The spelling of 20072264 in words is "twenty million, seventy-two thousand, two hundred sixty-four".