90480522 has 64 divisors (see below), whose sum is σ = 209381760. Its totient is φ = 25804800.

The previous prime is 90480497. The next prime is 90480529. The reversal of 90480522 is 22508409.

It is a super-2 number, since 2×90480522² = 16373449722784968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90480522.

It is not an unprimeable number, because it can be changed into a prime (90480529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77898 + ... + 79050.

It is an arithmetic number, because the mean of its divisors is an integer number (3271590).

Almost surely, 2^90480522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90480522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104690880).

90480522 is an abundant number, since it is smaller than the sum of its proper divisors (118901238).

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

90480522 is a wasteful number, since it uses less digits than its factorization.

90480522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 90480522 is about 9512.1249991787. The cubic root of 90480522 is about 448.9366200057.

The spelling of 90480522 in words is "ninety million, four hundred eighty thousand, five hundred twenty-two".