195022590 has 32 divisors (see below), whose sum is σ = 534919680. Its totient is φ = 44576544.

The previous prime is 195022573. The next prime is 195022601. The reversal of 195022590 is 95220591.

It is a super-2 number, since 2×195022590² = 76067621220616200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 464130 + ... + 464549.

It is an arithmetic number, because the mean of its divisors is an integer number (16716240).

Almost surely, 2^195022590 is an apocalyptic number.

195022590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195022590 is an abundant number, since it is smaller than the sum of its proper divisors (339897090).

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

195022590 is a wasteful number, since it uses less digits than its factorization.

195022590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928696.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 195022590 is about 13965.0488720949. The cubic root of 195022590 is about 579.9113915370.

The spelling of 195022590 in words is "one hundred ninety-five million, twenty-two thousand, five hundred ninety".