396449424 has 80 divisors (see below), whose sum is σ = 1300531840. Its totient is φ = 113270400.

The previous prime is 396449407. The next prime is 396449429. The reversal of 396449424 is 424944693.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 396449424.

It is not an unprimeable number, because it can be changed into a prime (396449429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62527 + ... + 68574.

It is an arithmetic number, because the mean of its divisors is an integer number (16256648).

Almost surely, 2^396449424 is an apocalyptic number.

It is an amenable number.

396449424 is an abundant number, since it is smaller than the sum of its proper divisors (904082416).

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

396449424 is a wasteful number, since it uses less digits than its factorization.

396449424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131125 (or 131113 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 396449424 is about 19911.0377429204. The cubic root of 396449424 is about 734.6197449985.

The spelling of 396449424 in words is "three hundred ninety-six million, four hundred forty-nine thousand, four hundred twenty-four".