396193806 has 48 divisors (see below), whose sum is σ = 914475744. Its totient is φ = 123535872.

The previous prime is 396193799. The next prime is 396193829. The reversal of 396193806 is 608391693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47226 + ... + 54978.

It is an arithmetic number, because the mean of its divisors is an integer number (19051578).

Almost surely, 2^396193806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396193806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457237872).

396193806 is an abundant number, since it is smaller than the sum of its proper divisors (518281938).

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

396193806 is a wasteful number, since it uses less digits than its factorization.

396193806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945 (or 7942 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 396193806 is about 19904.6177054471. The cubic root of 396193806 is about 734.4618245580.

The spelling of 396193806 in words is "three hundred ninety-six million, one hundred ninety-three thousand, eight hundred six".