195249672 has 48 divisors (see below), whose sum is σ = 529520940. Its totient is φ = 64994688.

The previous prime is 195249631. The next prime is 195249679. The reversal of 195249672 is 276942591.

195249672 is a `hidden beast` number, since 1 + 95 + 2 + 496 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 115218756 + 80030916 = 10734^2 + 8946^2 .

It is a super-2 number, since 2×195249672² = 76244868832215168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195249679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71598 + ... + 74274.

Almost surely, 2^195249672 is an apocalyptic number.

195249672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

195249672 is an abundant number, since it is smaller than the sum of its proper divisors (334271268).

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

195249672 is a wasteful number, since it uses less digits than its factorization.

195249672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702 (or 3695 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 195249672 is about 13973.1768757144. The cubic root of 195249672 is about 580.1363848910.

The spelling of 195249672 in words is "one hundred ninety-five million, two hundred forty-nine thousand, six hundred seventy-two".