90570288 has 60 divisors (see below), whose sum is σ = 248584040. Its totient is φ = 28409856.

The previous prime is 90570287. The next prime is 90570323. The reversal of 90570288 is 88207509.

It is not an unprimeable number, because it can be changed into a prime (90570281) 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, 10608 + ... + 17136.

Almost surely, 2^90570288 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 90570288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124292020).

90570288 is an abundant number, since it is smaller than the sum of its proper divisors (158013752).

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

90570288 is a wasteful number, since it uses less digits than its factorization.

90570288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574 (or 6551 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 90570288 is about 9516.8423334633. The cubic root of 90570288 is about 449.0850347293.

The spelling of 90570288 in words is "ninety million, five hundred seventy thousand, two hundred eighty-eight".