395687180 has 24 divisors (see below), whose sum is σ = 949649568. Its totient is φ = 135664128.

The previous prime is 395687167. The next prime is 395687207. The reversal of 395687180 is 81786593.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 1413029 + ... + 1413308.

It is an arithmetic number, because the mean of its divisors is an integer number (39568732).

Almost surely, 2^395687180 is an apocalyptic number.

It is an amenable number.

395687180 is an abundant number, since it is smaller than the sum of its proper divisors (553962388).

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

395687180 is a wasteful number, since it uses less digits than its factorization.

395687180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826353 (or 2826351 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 395687180 is about 19891.8872910541. The cubic root of 395687180 is about 734.1486308904.

The spelling of 395687180 in words is "three hundred ninety-five million, six hundred eighty-seven thousand, one hundred eighty".