195493444 has 6 divisors (see below), whose sum is σ = 342113534. Its totient is φ = 97746720.

The previous prime is 195493439. The next prime is 195493447. The reversal of 195493444 is 444394591.

It can be written as a sum of positive squares in only one way, i.e., 176570944 + 18922500 = 13288^2 + 4350^2 .

It is a super-2 number, since 2×195493444² = 76435373293962272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 195493444.

It is not an unprimeable number, because it can be changed into a prime (195493447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24436677 + ... + 24436684.

Almost surely, 2^195493444 is an apocalyptic number.

It is an amenable number.

195493444 is a deficient number, since it is larger than the sum of its proper divisors (146620090).

195493444 is a wasteful number, since it uses less digits than its factorization.

195493444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48873365 (or 48873363 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 195493444 is about 13981.8970100627. The cubic root of 195493444 is about 580.3777206651.

The spelling of 195493444 in words is "one hundred ninety-five million, four hundred ninety-three thousand, four hundred forty-four".