395773656 has 64 divisors (see below), whose sum is σ = 1021870080. Its totient is φ = 127653120.

The previous prime is 395773639. The next prime is 395773669. The reversal of 395773656 is 656377593.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 395773599 and 395773608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123385 + ... + 126551.

It is an arithmetic number, because the mean of its divisors is an integer number (15966720).

Almost surely, 2^395773656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395773656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510935040).

395773656 is an abundant number, since it is smaller than the sum of its proper divisors (626096424).

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

395773656 is a wasteful number, since it uses less digits than its factorization.

395773656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3340 counting only the distinct ones).

The product of its digits is 3572100, while the sum is 51.

The square root of 395773656 is about 19894.0608222655. The cubic root of 395773656 is about 734.2021088362.

The spelling of 395773656 in words is "three hundred ninety-five million, seven hundred seventy-three thousand, six hundred fifty-six".