285375580 has 96 divisors (see below), whose sum is σ = 711244800. Its totient is φ = 94149120.

The previous prime is 285375533. The next prime is 285375589. The reversal of 285375580 is 85573582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285375589) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 476121 + ... + 476719.

It is an arithmetic number, because the mean of its divisors is an integer number (7408800).

Almost surely, 2^285375580 is an apocalyptic number.

285375580 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 285375580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355622400).

285375580 is an abundant number, since it is smaller than the sum of its proper divisors (425869220).

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

285375580 is a wasteful number, since it uses less digits than its factorization.

285375580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 43.

The square root of 285375580 is about 16893.0630733446. The cubic root of 285375580 is about 658.3733895761.

The spelling of 285375580 in words is "two hundred eighty-five million, three hundred seventy-five thousand, five hundred eighty".