195437264 has 90 divisors (see below), whose sum is σ = 437986290. Its totient is φ = 84318080.

The previous prime is 195437251. The next prime is 195437267. The reversal of 195437264 is 462734591.

It can be written as a sum of positive squares in only one way, i.e., 168480400 + 26956864 = 12980^2 + 5192^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195437267) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3312467 + ... + 3312525.

Almost surely, 2^195437264 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 195437264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218993145).

195437264 is an abundant number, since it is smaller than the sum of its proper divisors (242549026).

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

195437264 is a wasteful number, since it uses less digits than its factorization.

195437264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 101 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 195437264 is about 13979.8878393212. The cubic root of 195437264 is about 580.3221199188.

The spelling of 195437264 in words is "one hundred ninety-five million, four hundred thirty-seven thousand, two hundred sixty-four".