195955240 has 32 divisors (see below), whose sum is σ = 474815880. Its totient is φ = 72352512.

The previous prime is 195955237. The next prime is 195955259. The reversal of 195955240 is 42559591.

It can be written as a sum of positive squares in 4 ways, for example, as 144144036 + 51811204 = 12006^2 + 7198^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 195955193 and 195955202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187899 + ... + 188938.

Almost surely, 2^195955240 is an apocalyptic number.

195955240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195955240 is an abundant number, since it is smaller than the sum of its proper divisors (278860640).

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

195955240 is a wasteful number, since it uses less digits than its factorization.

195955240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376861 (or 376857 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 40.

The square root of 195955240 is about 13998.4013372956. The cubic root of 195955240 is about 580.8343520904.

The spelling of 195955240 in words is "one hundred ninety-five million, nine hundred fifty-five thousand, two hundred forty".