90274170 has 128 divisors (see below), whose sum is σ = 261734400. Its totient is φ = 19897920.

The previous prime is 90274153. The next prime is 90274181. The reversal of 90274170 is 7147209.

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 63 ways as a sum of consecutive naturals, for example, 318849 + ... + 319131.

It is an arithmetic number, because the mean of its divisors is an integer number (2044800).

Almost surely, 2^90274170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90274170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130867200).

90274170 is an abundant number, since it is smaller than the sum of its proper divisors (171460230).

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

90274170 is a wasteful number, since it uses less digits than its factorization.

90274170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 90274170 is about 9501.2720201034. The cubic root of 90274170 is about 448.5950751016.

The spelling of 90274170 in words is "ninety million, two hundred seventy-four thousand, one hundred seventy".