90520458 has 32 divisors (see below), whose sum is σ = 208745856. Its totient is φ = 25632768.

The previous prime is 90520411. The next prime is 90520459. The reversal of 90520458 is 85402509.

It is not an unprimeable number, because it can be changed into a prime (90520459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4791 + ... + 14282.

It is an arithmetic number, because the mean of its divisors is an integer number (6523308).

Almost surely, 2^90520458 is an apocalyptic number.

90520458 is an abundant number, since it is smaller than the sum of its proper divisors (118225398).

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

90520458 is a wasteful number, since it uses less digits than its factorization.

90520458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19198.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 90520458 is about 9514.2239830687. The cubic root of 90520458 is about 449.0026603546.

The spelling of 90520458 in words is "ninety million, five hundred twenty thousand, four hundred fifty-eight".