396479984 has 20 divisors (see below), whose sum is σ = 813367584. Its totient is φ = 186578688.

The previous prime is 396479983. The next prime is 396480013. The reversal of 396479984 is 489974693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396479983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728552 + ... + 729095.

Almost surely, 2^396479984 is an apocalyptic number.

396479984 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

396479984 is an abundant number, since it is smaller than the sum of its proper divisors (416887600).

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

396479984 is a wasteful number, since it uses less digits than its factorization.

396479984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457672 (or 1457666 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 59.

The square root of 396479984 is about 19911.8051416741. The cubic root of 396479984 is about 734.6386203802.

The spelling of 396479984 in words is "three hundred ninety-six million, four hundred seventy-nine thousand, nine hundred eighty-four".