90289258 has 16 divisors (see below), whose sum is σ = 137710080. Its totient is φ = 44390736.

The previous prime is 90289229. The next prime is 90289271. The reversal of 90289258 is 85298209.

It is a super-2 number, since 2×90289258² = 16304300220381128, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 42735 + ... + 44797.

It is an arithmetic number, because the mean of its divisors is an integer number (8606880).

Almost surely, 2^90289258 is an apocalyptic number.

90289258 is a deficient number, since it is larger than the sum of its proper divisors (47420822).

90289258 is a wasteful number, since it uses less digits than its factorization.

90289258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 90289258 is about 9502.0659858791. The cubic root of 90289258 is about 448.6200657327.

The spelling of 90289258 in words is "ninety million, two hundred eighty-nine thousand, two hundred fifty-eight".