395990005180 has 96 divisors (see below), whose sum is σ = 1091340956160. Its totient is φ = 116929370880.

The previous prime is 395990005163. The next prime is 395990005217. The reversal of 395990005180 is 81500099593.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6737487 + ... + 6796006.

It is an arithmetic number, because the mean of its divisors is an integer number (11368134960).

Almost surely, 2^395990005180 is an apocalyptic number.

It is an amenable number.

395990005180 is an abundant number, since it is smaller than the sum of its proper divisors (695350950980).

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

395990005180 is a wasteful number, since it uses less digits than its factorization.

395990005180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13533539 (or 13533537 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 49.

The spelling of 395990005180 in words is "three hundred ninety-five billion, nine hundred ninety million, five thousand, one hundred eighty".