395890656 has 48 divisors (see below), whose sum is σ = 1187673984. Its totient is φ = 113111424.

The previous prime is 395890633. The next prime is 395890657. The reversal of 395890656 is 656098593.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×395890656² = 313458823016220672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395890599 and 395890608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395890657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293890 + ... + 295233.

It is an arithmetic number, because the mean of its divisors is an integer number (24743208).

Almost surely, 2^395890656 is an apocalyptic number.

It is an amenable number.

395890656 is an abundant number, since it is smaller than the sum of its proper divisors (791783328).

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

395890656 is a wasteful number, since it uses less digits than its factorization.

395890656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589143 (or 589135 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 51.

The square root of 395890656 is about 19897.0011810825. The cubic root of 395890656 is about 734.2744508445.

The spelling of 395890656 in words is "three hundred ninety-five million, eight hundred ninety thousand, six hundred fifty-six".