285072260 has 24 divisors (see below), whose sum is σ = 653075136. Its totient is φ = 103662560.

The previous prime is 285072239. The next prime is 285072287. The reversal of 285072260 is 62270582.

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, 647672 + ... + 648111.

It is an arithmetic number, because the mean of its divisors is an integer number (27211464).

Almost surely, 2^285072260 is an apocalyptic number.

285072260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285072260 is an abundant number, since it is smaller than the sum of its proper divisors (368002876).

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

285072260 is a wasteful number, since it uses less digits than its factorization.

285072260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295803 (or 1295801 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 285072260 is about 16884.0830369908. The cubic root of 285072260 is about 658.1400495803.

The spelling of 285072260 in words is "two hundred eighty-five million, seventy-two thousand, two hundred sixty".