395856140 has 24 divisors (see below), whose sum is σ = 833823312. Its totient is φ = 157861440.

The previous prime is 395856121. The next prime is 395856163. The reversal of 395856140 is 41658593.

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, 23279 + ... + 36518.

It is an arithmetic number, because the mean of its divisors is an integer number (34742638).

Almost surely, 2^395856140 is an apocalyptic number.

It is an amenable number.

395856140 is an abundant number, since it is smaller than the sum of its proper divisors (437967172).

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

395856140 is a wasteful number, since it uses less digits than its factorization.

395856140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60137 (or 60135 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 395856140 is about 19896.1337952880. The cubic root of 395856140 is about 734.2531108161.

The spelling of 395856140 in words is "three hundred ninety-five million, eight hundred fifty-six thousand, one hundred forty".