170490090 has 16 divisors (see below), whose sum is σ = 409176288. Its totient is φ = 45464016.

The previous prime is 170490079. The next prime is 170490107. The reversal of 170490090 is 90094071.

170490090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 5683003 = 170490090 / (1 + 7 + 0 + 4 + 9 + 0 + 0 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2841472 + ... + 2841531.

It is an arithmetic number, because the mean of its divisors is an integer number (25573518).

Almost surely, 2^170490090 is an apocalyptic number.

170490090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

170490090 is an abundant number, since it is smaller than the sum of its proper divisors (238686198).

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

170490090 is a wasteful number, since it uses less digits than its factorization.

170490090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683013.

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

The square root of 170490090 is about 13057.1853781740. The cubic root of 170490090 is about 554.4976543702.

The spelling of 170490090 in words is "one hundred seventy million, four hundred ninety thousand, ninety".