195537408 has 160 divisors (see below), whose sum is σ = 579820032. Its totient is φ = 58060800.

The previous prime is 195537317. The next prime is 195537413. The reversal of 195537408 is 804735591.

It is a self number, because there is not a number n which added to its sum of digits gives 195537408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1199535 + ... + 1199697.

Almost surely, 2^195537408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195537408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289910016).

195537408 is an abundant number, since it is smaller than the sum of its proper divisors (384282624).

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

195537408 is a wasteful number, since it uses less digits than its factorization.

195537408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 195537408 is about 13983.4690974736. The cubic root of 195537408 is about 580.4212239375.

The spelling of 195537408 in words is "one hundred ninety-five million, five hundred thirty-seven thousand, four hundred eight".