20288204 has 12 divisors (see below), whose sum is σ = 35542584. Its totient is φ = 10133184.

The previous prime is 20288189. The next prime is 20288207. The reversal of 20288204 is 40288202.

It is a super-2 number, since 2×20288204² = 823222443091232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20288207) 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, 2612 + ... + 6884.

It is an arithmetic number, because the mean of its divisors is an integer number (2961882).

Almost surely, 2^20288204 is an apocalyptic number.

It is an amenable number.

20288204 is a deficient number, since it is larger than the sum of its proper divisors (15254380).

20288204 is a wasteful number, since it uses less digits than its factorization.

20288204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464 (or 5462 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 20288204 is about 4504.2428886551. The cubic root of 20288204 is about 272.7393917982.

The spelling of 20288204 in words is "twenty million, two hundred eighty-eight thousand, two hundred four".