90322700288 has 108 divisors (see below), whose sum is σ = 187864025895. Its totient is φ = 43413651456.

The previous prime is 90322700243. The next prime is 90322700311. The reversal of 90322700288 is 88200722309.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 85189264384 + 5133435904 = 291872^2 + 71648^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=212512.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 394422158 + ... + 394422386.

Almost surely, 2^90322700288 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 90322700288

90322700288 is an abundant number, since it is smaller than the sum of its proper divisors (97541325607).

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

90322700288 is an frugal number, since it uses more digits than its factorization.

90322700288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 90322700288 in words is "ninety billion, three hundred twenty-two million, seven hundred thousand, two hundred eighty-eight".