195828590 has 16 divisors (see below), whose sum is σ = 364646880. Its totient is φ = 75630240.

The previous prime is 195828557. The next prime is 195828617. The reversal of 195828590 is 95828591.

It is a super-2 number, since 2×195828590² = 76697673322776200, which contains 22 as substring.

It is a congruent number.

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, 337346 + ... + 337925.

It is an arithmetic number, because the mean of its divisors is an integer number (22790430).

Almost surely, 2^195828590 is an apocalyptic number.

195828590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195828590 is a deficient number, since it is larger than the sum of its proper divisors (168818290).

195828590 is a wasteful number, since it uses less digits than its factorization.

195828590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675307.

The product of its (nonzero) digits is 259200, while the sum is 47.

The square root of 195828590 is about 13993.8768752623. The cubic root of 195828590 is about 580.7091899620.

Subtracting from 195828590 its reverse (95828591), we obtain a palindrome (99999999).

The spelling of 195828590 in words is "one hundred ninety-five million, eight hundred twenty-eight thousand, five hundred ninety".