20589168 has 40 divisors (see below), whose sum is σ = 54630928. Its totient is φ = 6676992.

The previous prime is 20589157. The next prime is 20589181. The reversal of 20589168 is 86198502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4021 + ... + 7572.

Almost surely, 2^20589168 is an apocalyptic number.

It is an amenable number.

20589168 is an abundant number, since it is smaller than the sum of its proper divisors (34041760).

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

20589168 is a wasteful number, since it uses less digits than its factorization.

20589168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11641 (or 11635 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 20589168 is about 4537.5288428835. The cubic root of 20589168 is about 274.0814221587.

The spelling of 20589168 in words is "twenty million, five hundred eighty-nine thousand, one hundred sixty-eight".