396226864 has 40 divisors (see below), whose sum is σ = 839946240. Its totient is φ = 179572800.

The previous prime is 396226823. The next prime is 396226891. The reversal of 396226864 is 468622693.

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, 60049 + ... + 66319.

It is an arithmetic number, because the mean of its divisors is an integer number (20998656).

Almost surely, 2^396226864 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 396226864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419973120).

396226864 is an abundant number, since it is smaller than the sum of its proper divisors (443719376).

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

396226864 is a wasteful number, since it uses less digits than its factorization.

396226864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6649 (or 6643 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 396226864 is about 19905.4480984478. The cubic root of 396226864 is about 734.4822515673.

The spelling of 396226864 in words is "three hundred ninety-six million, two hundred twenty-six thousand, eight hundred sixty-four".