90158208 has 128 divisors (see below), whose sum is σ = 289941120. Its totient is φ = 24231936.

The previous prime is 90158171. The next prime is 90158219. The reversal of 90158208 is 80285109.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 44710 + ... + 46682.

It is an arithmetic number, because the mean of its divisors is an integer number (2265165).

Almost surely, 2^90158208 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 90158208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144970560).

90158208 is an abundant number, since it is smaller than the sum of its proper divisors (199782912).

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

90158208 is a wasteful number, since it uses less digits than its factorization.

90158208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 90158208 is about 9495.1676130545. The cubic root of 90158208 is about 448.4029113403.

The spelling of 90158208 in words is "ninety million, one hundred fifty-eight thousand, two hundred eight".