285263850 has 24 divisors (see below), whose sum is σ = 707454720. Its totient is φ = 76070320.

The previous prime is 285263833. The next prime is 285263851. The reversal of 285263850 is 58362582.

It is a junction number, because it is equal to n+sod(n) for n = 285263799 and 285263808.

It is not an unprimeable number, because it can be changed into a prime (285263851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 950730 + ... + 951029.

It is an arithmetic number, because the mean of its divisors is an integer number (29477280).

Almost surely, 2^285263850 is an apocalyptic number.

285263850 is an abundant number, since it is smaller than the sum of its proper divisors (422190870).

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

285263850 is a wasteful number, since it uses less digits than its factorization.

285263850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901774 (or 1901769 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 285263850 is about 16889.7557708808. The cubic root of 285263850 is about 658.2874564338.

The spelling of 285263850 in words is "two hundred eighty-five million, two hundred sixty-three thousand, eight hundred fifty".