285392088 has 48 divisors (see below), whose sum is σ = 777890880. Its totient is φ = 94521024.

The previous prime is 285392087. The next prime is 285392089. The reversal of 285392088 is 880293582.

It is an interprime number because it is at equal distance from previous prime (285392087) and next prime (285392089).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285392087) 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, 1320 + ... + 23927.

It is an arithmetic number, because the mean of its divisors is an integer number (16206060).

Almost surely, 2^285392088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285392088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388945440).

285392088 is an abundant number, since it is smaller than the sum of its proper divisors (492498792).

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

285392088 is a wasteful number, since it uses less digits than its factorization.

285392088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25416 (or 25409 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 285392088 is about 16893.5516692021. The cubic root of 285392088 is about 658.3860842133.

The spelling of 285392088 in words is "two hundred eighty-five million, three hundred ninety-two thousand, eighty-eight".