90174090 has 32 divisors (see below), whose sum is σ = 217002240. Its totient is φ = 23981504.

The previous prime is 90174083. The next prime is 90174101. The reversal of 90174090 is 9047109.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7807 + ... + 15533.

It is an arithmetic number, because the mean of its divisors is an integer number (6781320).

Almost surely, 2^90174090 is an apocalyptic number.

90174090 is an abundant number, since it is smaller than the sum of its proper divisors (126828150).

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

90174090 is a wasteful number, since it uses less digits than its factorization.

90174090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 90174090 is about 9496.0038963766. The cubic root of 90174090 is about 448.4292395659.

The spelling of 90174090 in words is "ninety million, one hundred seventy-four thousand, ninety".