90558420 has 24 divisors (see below), whose sum is σ = 253563744. Its totient is φ = 24148896.

The previous prime is 90558367. The next prime is 90558421. The reversal of 90558420 is 2485509.

90558420 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

90558420 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90558421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754594 + ... + 754713.

It is an arithmetic number, because the mean of its divisors is an integer number (10565156).

Almost surely, 2^90558420 is an apocalyptic number.

It is an amenable number.

90558420 is an abundant number, since it is smaller than the sum of its proper divisors (163005324).

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

90558420 is a wasteful number, since it uses less digits than its factorization.

90558420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509319 (or 1509317 counting only the distinct ones).

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

The square root of 90558420 is about 9516.2187868922. The cubic root of 90558420 is about 449.0654183844.

The spelling of 90558420 in words is "ninety million, five hundred fifty-eight thousand, four hundred twenty".