20192589 has 6 divisors (see below), whose sum is σ = 29167086. Its totient is φ = 13461720.

The previous prime is 20192581. The next prime is 20192593. The reversal of 20192589 is 98529102.

It can be written as a sum of positive squares in only one way, i.e., 15920100 + 4272489 = 3990^2 + 2067^2 .

It is not a de Polignac number, because 20192589 - 2³ = 20192581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20192581) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1121802 + ... + 1121819.

It is an arithmetic number, because the mean of its divisors is an integer number (4861181).

Almost surely, 2^20192589 is an apocalyptic number.

It is an amenable number.

20192589 is a deficient number, since it is larger than the sum of its proper divisors (8974497).

20192589 is a wasteful number, since it uses less digits than its factorization.

20192589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243627 (or 2243624 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 20192589 is about 4493.6164722860. The cubic root of 20192589 is about 272.3102581723.

The spelling of 20192589 in words is "twenty million, one hundred ninety-two thousand, five hundred eighty-nine".