195493240 has 16 divisors (see below), whose sum is σ = 439859880. Its totient is φ = 78197280.

The previous prime is 195493229. The next prime is 195493247. The reversal of 195493240 is 42394591.

It is a self number, because there is not a number n which added to its sum of digits gives 195493240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195493247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443626 + ... + 2443705.

Almost surely, 2^195493240 is an apocalyptic number.

195493240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195493240 is an abundant number, since it is smaller than the sum of its proper divisors (244366640).

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

195493240 is a wasteful number, since it uses less digits than its factorization.

195493240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4887342 (or 4887338 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 195493240 is about 13981.8897149134. The cubic root of 195493240 is about 580.3775187878.

The spelling of 195493240 in words is "one hundred ninety-five million, four hundred ninety-three thousand, two hundred forty".