90024012 has 72 divisors (see below), whose sum is σ = 246901200. Its totient is φ = 27492480.

The previous prime is 90024007. The next prime is 90024037. The reversal of 90024012 is 21042009.

It is a super-2 number, since 2×90024012² = 16208645473152288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69087 + ... + 70377.

Almost surely, 2^90024012 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 90024012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123450600).

90024012 is an abundant number, since it is smaller than the sum of its proper divisors (156877188).

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

90024012 is a wasteful number, since it uses less digits than its factorization.

90024012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 90024012 is about 9488.0984396242. The cubic root of 90024012 is about 448.1803257380.

The spelling of 90024012 in words is "ninety million, twenty-four thousand, twelve".