195403240 has 16 divisors (see below), whose sum is σ = 439657380. Its totient is φ = 78161280.

The previous prime is 195403231. The next prime is 195403291. The reversal of 195403240 is 42304591.

It can be written as a sum of positive squares in 2 ways, for example, as 189282564 + 6120676 = 13758^2 + 2474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 195403199 and 195403208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2442501 + ... + 2442580.

Almost surely, 2^195403240 is an apocalyptic number.

195403240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195403240 is an abundant number, since it is smaller than the sum of its proper divisors (244254140).

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

195403240 is a wasteful number, since it uses less digits than its factorization.

195403240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4885092 (or 4885088 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 195403240 is about 13978.6708953319. The cubic root of 195403240 is about 580.2884415483.

The spelling of 195403240 in words is "one hundred ninety-five million, four hundred three thousand, two hundred forty".