20204588 has 6 divisors (see below), whose sum is σ = 35358036. Its totient is φ = 10102292.

The previous prime is 20204579. The next prime is 20204593. The reversal of 20204588 is 88540202.

It is a self number, because there is not a number n which added to its sum of digits gives 20204588.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525570 + ... + 2525577.

It is an arithmetic number, because the mean of its divisors is an integer number (5893006).

Almost surely, 2^20204588 is an apocalyptic number.

It is an amenable number.

20204588 is a deficient number, since it is larger than the sum of its proper divisors (15153448).

20204588 is a wasteful number, since it uses less digits than its factorization.

20204588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051151 (or 5051149 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 20204588 is about 4494.9513901710. The cubic root of 20204588 is about 272.3641856107.

The spelling of 20204588 in words is "twenty million, two hundred four thousand, five hundred eighty-eight".