396221324 has 12 divisors (see below), whose sum is σ = 693527184. Its totient is φ = 198070704.

The previous prime is 396221311. The next prime is 396221339. The reversal of 396221324 is 423122693.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31082 + ... + 41934.

It is an arithmetic number, because the mean of its divisors is an integer number (57793932).

Almost surely, 2^396221324 is an apocalyptic number.

It is an amenable number.

396221324 is a deficient number, since it is larger than the sum of its proper divisors (297305860).

396221324 is a wasteful number, since it uses less digits than its factorization.

396221324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19984 (or 19982 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 396221324 is about 19905.3089400793. The cubic root of 396221324 is about 734.4788284016.

The spelling of 396221324 in words is "three hundred ninety-six million, two hundred twenty-one thousand, three hundred twenty-four".