90190092 has 48 divisors (see below), whose sum is σ = 216457472. Its totient is φ = 29211840.

The previous prime is 90190069. The next prime is 90190099. The reversal of 90190092 is 29009109.

It is not an unprimeable number, because it can be changed into a prime (90190099) 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, 142617 + ... + 143247.

Almost surely, 2^90190092 is an apocalyptic number.

It is an amenable number.

90190092 is an abundant number, since it is smaller than the sum of its proper divisors (126267380).

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

90190092 is a wasteful number, since it uses less digits than its factorization.

90190092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 90190092 is about 9496.8464239452. The cubic root of 90190092 is about 448.4557635939.

The spelling of 90190092 in words is "ninety million, one hundred ninety thousand, ninety-two".