195311040 has 56 divisors (see below), whose sum is σ = 620115600. Its totient is φ = 52082688.

The previous prime is 195311033. The next prime is 195311041. The reversal of 195311040 is 40113591.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 195311040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195311041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100765 + ... + 102684.

Almost surely, 2^195311040 is an apocalyptic number.

195311040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195311040 is an abundant number, since it is smaller than the sum of its proper divisors (424804560).

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

195311040 is a wasteful number, since it uses less digits than its factorization.

195311040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203469 (or 203459 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 195311040 is about 13975.3726247281. The cubic root of 195311040 is about 580.1971584978.

The spelling of 195311040 in words is "one hundred ninety-five million, three hundred eleven thousand, forty".