169430190 has 96 divisors (see below), whose sum is σ = 442976256. Its totient is φ = 41352960.

The previous prime is 169430147. The next prime is 169430231. The reversal of 169430190 is 91034961.

It is a super-2 number, since 2×169430190² = 57413178566872200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1903666 + ... + 1903754.

It is an arithmetic number, because the mean of its divisors is an integer number (4614336).

Almost surely, 2^169430190 is an apocalyptic number.

169430190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 169430190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221488128).

169430190 is an abundant number, since it is smaller than the sum of its proper divisors (273546066).

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

169430190 is a wasteful number, since it uses less digits than its factorization.

169430190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 169430190 is about 13016.5352532846. The cubic root of 169430190 is about 553.3462009717.

The spelling of 169430190 in words is "one hundred sixty-nine million, four hundred thirty thousand, one hundred ninety".