90249320 has 32 divisors (see below), whose sum is σ = 232070400. Its totient is φ = 30942528.

The previous prime is 90249281. The next prime is 90249329. The reversal of 90249320 is 2394209.

It is not an unprimeable number, because it can be changed into a prime (90249329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160880 + ... + 161439.

It is an arithmetic number, because the mean of its divisors is an integer number (7252200).

Almost surely, 2^90249320 is an apocalyptic number.

It is an amenable number.

90249320 is an abundant number, since it is smaller than the sum of its proper divisors (141821080).

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

90249320 is a wasteful number, since it uses less digits than its factorization.

90249320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322337 (or 322333 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 90249320 is about 9499.9642104589. The cubic root of 90249320 is about 448.5539093556.

The spelling of 90249320 in words is "ninety million, two hundred forty-nine thousand, three hundred twenty".