396447996 has 48 divisors (see below), whose sum is σ = 1112840960. Its totient is φ = 107308800.

The previous prime is 396447971. The next prime is 396448043. The reversal of 396447996 is 699744693.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 122605 + ... + 125796.

Almost surely, 2^396447996 is an apocalyptic number.

It is an amenable number.

396447996 is an abundant number, since it is smaller than the sum of its proper divisors (716392964).

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

396447996 is a wasteful number, since it uses less digits than its factorization.

396447996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248434 (or 248432 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 57.

The square root of 396447996 is about 19911.0018833810. The cubic root of 396447996 is about 734.6188629707.

The spelling of 396447996 in words is "three hundred ninety-six million, four hundred forty-seven thousand, nine hundred ninety-six".