90245332 has 12 divisors (see below), whose sum is σ = 163375380. Its totient is φ = 43566656.

The previous prime is 90245321. The next prime is 90245339. The reversal of 90245332 is 23354209.

It can be written as a sum of positive squares in 2 ways, for example, as 18267076 + 71978256 = 4274^2 + 8484^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90245332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90245339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388873 + ... + 389104.

It is an arithmetic number, because the mean of its divisors is an integer number (13614615).

Almost surely, 2^90245332 is an apocalyptic number.

It is an amenable number.

90245332 is a deficient number, since it is larger than the sum of its proper divisors (73130048).

90245332 is a wasteful number, since it uses less digits than its factorization.

90245332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778010 (or 778008 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 90245332 is about 9499.7543126125. The cubic root of 90245332 is about 448.5473022538.

The spelling of 90245332 in words is "ninety million, two hundred forty-five thousand, three hundred thirty-two".