195197040 has 140 divisors (see below), whose sum is σ = 680641704. Its totient is φ = 52036992.

The previous prime is 195197033. The next prime is 195197083. The reversal of 195197040 is 40791591.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 195196986 and 195197004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 56647 + ... + 59993.

Almost surely, 2^195197040 is an apocalyptic number.

195197040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195197040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340320852).

195197040 is an abundant number, since it is smaller than the sum of its proper divisors (485444664).

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

195197040 is an equidigital number, since it uses as much as digits as its factorization.

195197040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378 (or 3357 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 195197040 is about 13971.2934261650. The cubic root of 195197040 is about 580.0842525248.

The spelling of 195197040 in words is "one hundred ninety-five million, one hundred ninety-seven thousand, forty".