195220788 has 48 divisors (see below), whose sum is σ = 526458240. Its totient is φ = 55148544.

The previous prime is 195220777. The next prime is 195220807. The reversal of 195220788 is 887022591.

195220788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×195220788² = 76222312134681888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5581 + ... + 20532.

It is an arithmetic number, because the mean of its divisors is an integer number (10967880).

Almost surely, 2^195220788 is an apocalyptic number.

It is an amenable number.

195220788 is an abundant number, since it is smaller than the sum of its proper divisors (331237452).

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

195220788 is a wasteful number, since it uses less digits than its factorization.

195220788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26216 (or 26214 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 195220788 is about 13972.1432858384. The cubic root of 195220788 is about 580.1077762459.

The spelling of 195220788 in words is "one hundred ninety-five million, two hundred twenty thousand, seven hundred eighty-eight".