285871152 has 40 divisors (see below), whose sum is σ = 844001536. Its totient is φ = 81677376.

The previous prime is 285871109. The next prime is 285871189. The reversal of 285871152 is 251178582.

It is a self number, because there is not a number n which added to its sum of digits gives 285871152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425068 + ... + 425739.

Almost surely, 2^285871152 is an apocalyptic number.

It is an amenable number.

285871152 is an abundant number, since it is smaller than the sum of its proper divisors (558130384).

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

285871152 is a wasteful number, since it uses less digits than its factorization.

285871152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850825 (or 850819 counting only the distinct ones).

The product of its digits is 44800, while the sum is 39.

The square root of 285871152 is about 16907.7246251528. The cubic root of 285871152 is about 658.7542709583.

The spelling of 285871152 in words is "two hundred eighty-five million, eight hundred seventy-one thousand, one hundred fifty-two".