195630864 has 120 divisors (see below), whose sum is σ = 598461696. Its totient is φ = 54700800.

The previous prime is 195630857. The next prime is 195630871. The reversal of 195630864 is 468036591.

It is an interprime number because it is at equal distance from previous prime (195630857) and next prime (195630871).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74209 + ... + 76799.

Almost surely, 2^195630864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195630864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299230848).

195630864 is an abundant number, since it is smaller than the sum of its proper divisors (402830832).

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

195630864 is a wasteful number, since it uses less digits than its factorization.

195630864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637 (or 2620 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 195630864 is about 13986.8103583340. The cubic root of 195630864 is about 580.5136788918.

The spelling of 195630864 in words is "one hundred ninety-five million, six hundred thirty thousand, eight hundred sixty-four".