195540240 has 160 divisors (see below), whose sum is σ = 697098240. Its totient is φ = 44416512.

The previous prime is 195540217. The next prime is 195540269. The reversal of 195540240 is 42045591.

195540240 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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 195540198 and 195540207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401277 + ... + 401763.

It is an arithmetic number, because the mean of its divisors is an integer number (4356864).

Almost surely, 2^195540240 is an apocalyptic number.

195540240 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 195540240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348549120).

195540240 is an abundant number, since it is smaller than the sum of its proper divisors (501558000).

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

195540240 is a wasteful number, since it uses less digits than its factorization.

195540240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 195540240 is about 13983.5703595326. The cubic root of 195540240 is about 580.4240260356.

It can be divided in two parts, 1955 and 40240, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 195540240 in words is "one hundred ninety-five million, five hundred forty thousand, two hundred forty".