195892638 has 16 divisors (see below), whose sum is σ = 392385936. Its totient is φ = 65197440.

The previous prime is 195892597. The next prime is 195892661. The reversal of 195892638 is 836298591.

It is a happy number.

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, 20731 + ... + 28662.

It is an arithmetic number, because the mean of its divisors is an integer number (24524121).

Almost surely, 2^195892638 is an apocalyptic number.

195892638 is an abundant number, since it is smaller than the sum of its proper divisors (196493298).

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

195892638 is a wasteful number, since it uses less digits than its factorization.

195892638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50059.

The product of its digits is 933120, while the sum is 51.

The square root of 195892638 is about 13996.1651176313. The cubic root of 195892638 is about 580.7724922750.

The spelling of 195892638 in words is "one hundred ninety-five million, eight hundred ninety-two thousand, six hundred thirty-eight".