195872940 has 72 divisors (see below), whose sum is σ = 595314720. Its totient is φ = 52130304.

The previous prime is 195872939. The next prime is 195872947. The reversal of 195872940 is 49278591.

195872940 is a `hidden beast` number, since 1 + 9 + 587 + 29 + 40 = 666.

195872940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (195872947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150372 + ... + 151668.

It is an arithmetic number, because the mean of its divisors is an integer number (8268260).

Almost surely, 2^195872940 is an apocalyptic number.

195872940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195872940 is an abundant number, since it is smaller than the sum of its proper divisors (399441780).

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

195872940 is a wasteful number, since it uses less digits than its factorization.

195872940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 195872940 is about 13995.4614071848. The cubic root of 195872940 is about 580.7530250809.

The spelling of 195872940 in words is "one hundred ninety-five million, eight hundred seventy-two thousand, nine hundred forty".