285631234 has 8 divisors (see below), whose sum is σ = 489653568. Its totient is φ = 122413380.

The previous prime is 285631211. The next prime is 285631243. The reversal of 285631234 is 432136582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 285631234.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10201102 + ... + 10201129.

It is an arithmetic number, because the mean of its divisors is an integer number (61206696).

Almost surely, 2^285631234 is an apocalyptic number.

285631234 is a deficient number, since it is larger than the sum of its proper divisors (204022334).

285631234 is a wasteful number, since it uses less digits than its factorization.

285631234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20402240.

The product of its digits is 34560, while the sum is 34.

The square root of 285631234 is about 16900.6282131760. The cubic root of 285631234 is about 658.5699323842.

The spelling of 285631234 in words is "two hundred eighty-five million, six hundred thirty-one thousand, two hundred thirty-four".