195406464 has 64 divisors (see below), whose sum is σ = 566246880. Its totient is φ = 59212800.

The previous prime is 195406433. The next prime is 195406481. The reversal of 195406464 is 464604591.

It is a tau number, because it is divible by the number of its divisors (64).

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, 18907 + ... + 27354.

Almost surely, 2^195406464 is an apocalyptic number.

It is an amenable number.

195406464 is an abundant number, since it is smaller than the sum of its proper divisors (370840416).

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

195406464 is a wasteful number, since it uses less digits than its factorization.

195406464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46289 (or 46277 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 195406464 is about 13978.7862134021. The cubic root of 195406464 is about 580.2916329653.

The spelling of 195406464 in words is "one hundred ninety-five million, four hundred six thousand, four hundred sixty-four".