90201504 has 24 divisors (see below), whose sum is σ = 236779200. Its totient is φ = 30067136.

The previous prime is 90201499. The next prime is 90201509. The reversal of 90201504 is 40510209.

It is an interprime number because it is at equal distance from previous prime (90201499) and next prime (90201509).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×90201504² = 16272622647724032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90201509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469704 + ... + 469895.

It is an arithmetic number, because the mean of its divisors is an integer number (9865800).

Almost surely, 2^90201504 is an apocalyptic number.

It is an amenable number.

90201504 is an abundant number, since it is smaller than the sum of its proper divisors (146577696).

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

90201504 is a wasteful number, since it uses less digits than its factorization.

90201504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939612 (or 939604 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 90201504 is about 9497.4472359682. The cubic root of 90201504 is about 448.4746775759.

The spelling of 90201504 in words is "ninety million, two hundred one thousand, five hundred four".