285072800 has 72 divisors (see below), whose sum is σ = 712204416. Its totient is φ = 111363840.

The previous prime is 285072797. The next prime is 285072817. The reversal of 285072800 is 8270582.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30257 + ... + 38543.

It is an arithmetic number, because the mean of its divisors is an integer number (9891728).

Almost surely, 2^285072800 is an apocalyptic number.

285072800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285072800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356102208).

285072800 is an abundant number, since it is smaller than the sum of its proper divisors (427131616).

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

285072800 is a wasteful number, since it uses less digits than its factorization.

285072800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8350 (or 8337 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 285072800 is about 16884.0990283758. The cubic root of 285072800 is about 658.1404651421.

The spelling of 285072800 in words is "two hundred eighty-five million, seventy-two thousand, eight hundred".