395170240 has 112 divisors (see below), whose sum is σ = 985723200. Its totient is φ = 150700032.

The previous prime is 395170231. The next prime is 395170247. The reversal of 395170240 is 42071593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395170247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899941 + ... + 900379.

It is an arithmetic number, because the mean of its divisors is an integer number (8801100).

Almost surely, 2^395170240 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 395170240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492861600).

395170240 is an abundant number, since it is smaller than the sum of its proper divisors (590552960).

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

395170240 is a wasteful number, since it uses less digits than its factorization.

395170240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 395170240 is about 19878.8893049888. The cubic root of 395170240 is about 733.8287854828.

The spelling of 395170240 in words is "three hundred ninety-five million, one hundred seventy thousand, two hundred forty".