9090258 has 16 divisors (see below), whose sum is σ = 18369120. Its totient is φ = 2998656.

The previous prime is 9090251. The next prime is 9090259. The reversal of 9090258 is 8520909.

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 7 ways as a sum of consecutive naturals, for example, 7228 + ... + 8391.

It is an arithmetic number, because the mean of its divisors is an integer number (1148070).

Almost surely, 2^9090258 is an apocalyptic number.

9090258 is an abundant number, since it is smaller than the sum of its proper divisors (9278862).

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

9090258 is a wasteful number, since it uses less digits than its factorization.

9090258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15721.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 9090258 is about 3015.0054726318. The cubic root of 9090258 is about 208.7014196059.

Subtracting from 9090258 its sum of digits (33), we obtain a square (9090225 = 3015²).

The spelling of 9090258 in words is "nine million, ninety thousand, two hundred fifty-eight".