396256 has 48 divisors (see below), whose sum is σ = 937440. Its totient is φ = 161280.

The previous prime is 396247. The next prime is 396259. The reversal of 396256 is 652693.

It is a super-4 number, since 4×396256⁴ (a number of 23 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396259) by changing a digit.

396256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6466 + ... + 6526.

It is an arithmetic number, because the mean of its divisors is an integer number (19530).

2³⁹⁶²⁵⁶ 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 396256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468720).

396256 is an abundant number, since it is smaller than the sum of its proper divisors (541184).

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

396256 is a wasteful number, since it uses less digits than its factorization.

396256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 99 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 396256 is about 629.4886813915. The cubic root of 396256 is about 73.4500254175.

The spelling of 396256 in words is "three hundred ninety-six thousand, two hundred fifty-six".