195887464 has 16 divisors (see below), whose sum is σ = 388894500. Its totient is φ = 92182272.

The previous prime is 195887459. The next prime is 195887477. The reversal of 195887464 is 464788591.

It can be written as a sum of positive squares in 2 ways, for example, as 189282564 + 6604900 = 13758^2 + 2570^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720039 + ... + 720310.

Almost surely, 2^195887464 is an apocalyptic number.

It is an amenable number.

195887464 is a deficient number, since it is larger than the sum of its proper divisors (193007036).

195887464 is a wasteful number, since it uses less digits than its factorization.

195887464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440372 (or 1440368 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 195887464 is about 13995.9802800661. The cubic root of 195887464 is about 580.7673790263.

The spelling of 195887464 in words is "one hundred ninety-five million, eight hundred eighty-seven thousand, four hundred sixty-four".