195228644 has 12 divisors (see below), whose sum is σ = 367931004. Its totient is φ = 90105504.

The previous prime is 195228641. The next prime is 195228661. The reversal of 195228644 is 446822591.

It can be written as a sum of positive squares in 2 ways, for example, as 40475044 + 154753600 = 6362^2 + 12440^2 .

It is a super-2 number, since 2×195228644² = 76228446876157472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195228641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877147 + ... + 1877250.

It is an arithmetic number, because the mean of its divisors is an integer number (30660917).

Almost surely, 2^195228644 is an apocalyptic number.

It is an amenable number.

195228644 is a deficient number, since it is larger than the sum of its proper divisors (172702360).

195228644 is a wasteful number, since it uses less digits than its factorization.

195228644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754414 (or 3754412 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 195228644 is about 13972.4244138231. The cubic root of 195228644 is about 580.1155576330.

The spelling of 195228644 in words is "one hundred ninety-five million, two hundred twenty-eight thousand, six hundred forty-four".