395265680 has 40 divisors (see below), whose sum is σ = 920633784. Its totient is φ = 157824000.

The previous prime is 395265617. The next prime is 395265697. The reversal of 395265680 is 86562593.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 195552256 + 199713424 = 13984^2 + 14132^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43970 + ... + 52190.

Almost surely, 2^395265680 is an apocalyptic number.

It is an amenable number.

395265680 is an abundant number, since it is smaller than the sum of its proper divisors (525368104).

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

395265680 is a wasteful number, since it uses less digits than its factorization.

395265680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8835 (or 8829 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 395265680 is about 19881.2896965966. The cubic root of 395265680 is about 733.8878578982.

The spelling of 395265680 in words is "three hundred ninety-five million, two hundred sixty-five thousand, six hundred eighty".