395525799940 has 48 divisors (see below), whose sum is σ = 834319842048. Its totient is φ = 157503383424.

The previous prime is 395525799917. The next prime is 395525799947. The reversal of 395525799940 is 49997525593.

It is not an unprimeable number, because it can be changed into a prime (395525799947) 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, 8091814 + ... + 8140546.

It is an arithmetic number, because the mean of its divisors is an integer number (17381663376).

Almost surely, 2^395525799940 is an apocalyptic number.

It is an amenable number.

395525799940 is an abundant number, since it is smaller than the sum of its proper divisors (438794042108).

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

395525799940 is a wasteful number, since it uses less digits than its factorization.

395525799940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50548 (or 50546 counting only the distinct ones).

The product of its (nonzero) digits is 137781000, while the sum is 67.

The spelling of 395525799940 in words is "three hundred ninety-five billion, five hundred twenty-five million, seven hundred ninety-nine thousand, nine hundred forty".