285230589 has 16 divisors (see below), whose sum is σ = 434944512. Its totient is φ = 162873648.

The previous prime is 285230581. The next prime is 285230599. The reversal of 285230589 is 985032582.

It is not a de Polignac number, because 285230589 - 2³ = 285230581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285230589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285230581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32242 + ... + 40124.

It is an arithmetic number, because the mean of its divisors is an integer number (27184032).

Almost surely, 2^285230589 is an apocalyptic number.

It is an amenable number.

285230589 is a deficient number, since it is larger than the sum of its proper divisors (149713923).

285230589 is a wasteful number, since it uses less digits than its factorization.

285230589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9616.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 285230589 is about 16888.7710920600. The cubic root of 285230589 is about 658.2618705886.

The spelling of 285230589 in words is "two hundred eighty-five million, two hundred thirty thousand, five hundred eighty-nine".