395464780 has 12 divisors (see below), whose sum is σ = 830476080. Its totient is φ = 158185904.

The previous prime is 395464777. The next prime is 395464781. The reversal of 395464780 is 87464593.

It is a self number, because there is not a number n which added to its sum of digits gives 395464780.

It is not an unprimeable number, because it can be changed into a prime (395464781) 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, 9886600 + ... + 9886639.

It is an arithmetic number, because the mean of its divisors is an integer number (69206340).

Almost surely, 2^395464780 is an apocalyptic number.

It is an amenable number.

395464780 is an abundant number, since it is smaller than the sum of its proper divisors (435011300).

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

395464780 is a wasteful number, since it uses less digits than its factorization.

395464780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19773248 (or 19773246 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 395464780 is about 19886.2962866392. The cubic root of 395464780 is about 734.0110598803.

The spelling of 395464780 in words is "three hundred ninety-five million, four hundred sixty-four thousand, seven hundred eighty".