285936630 has 32 divisors (see below), whose sum is σ = 784283904. Its totient is φ = 65356896.

The previous prime is 285936589. The next prime is 285936661. The reversal of 285936630 is 36639582.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680592 + ... + 681011.

It is an arithmetic number, because the mean of its divisors is an integer number (24508872).

Almost surely, 2^285936630 is an apocalyptic number.

285936630 is an abundant number, since it is smaller than the sum of its proper divisors (498347274).

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

285936630 is a wasteful number, since it uses less digits than its factorization.

285936630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361620.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 285936630 is about 16909.6608481661. The cubic root of 285936630 is about 658.8045624026.

The spelling of 285936630 in words is "two hundred eighty-five million, nine hundred thirty-six thousand, six hundred thirty".