285642630 has 96 divisors (see below), whose sum is σ = 914082624. Its totient is φ = 60265728.

The previous prime is 285642611. The next prime is 285642647. The reversal of 285642630 is 36246582.

285642630 is a `hidden beast` number, since 2 + 8 + 5 + 642 + 6 + 3 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9249 + ... + 25628.

It is an arithmetic number, because the mean of its divisors is an integer number (9521694).

Almost surely, 2^285642630 is an apocalyptic number.

285642630 is an abundant number, since it is smaller than the sum of its proper divisors (628439994).

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

285642630 is a wasteful number, since it uses less digits than its factorization.

285642630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34910 (or 34907 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 285642630 is about 16900.9653570440. The cubic root of 285642630 is about 658.5786907204.

The spelling of 285642630 in words is "two hundred eighty-five million, six hundred forty-two thousand, six hundred thirty".