9090252 has 48 divisors (see below), whose sum is σ = 23910880. Its totient is φ = 2985984.

The previous prime is 9090251. The next prime is 9090259. The reversal of 9090252 is 2520909.

9090252 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (9090251) 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 15 ways as a sum of consecutive naturals, for example, 7308 + ... + 8460.

Almost surely, 2^9090252 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 9090252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11955440).

9090252 is an abundant number, since it is smaller than the sum of its proper divisors (14820628).

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

9090252 is a wasteful number, since it uses less digits than its factorization.

9090252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 9090252 is about 3015.0044776086. The cubic root of 9090252 is about 208.7013736882.

Subtracting from 9090252 its sum of digits (27), we obtain a square (9090225 = 3015²).

The spelling of 9090252 in words is "nine million, ninety thousand, two hundred fifty-two".