399533324 has 6 divisors (see below), whose sum is σ = 699183324. Its totient is φ = 199766660.

The previous prime is 399533317. The next prime is 399533327. The reversal of 399533324 is 423335993.

It is not an unprimeable number, because it can be changed into a prime (399533327) 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 as a sum of consecutive naturals, namely, 49941662 + ... + 49941669.

It is an arithmetic number, because the mean of its divisors is an integer number (116530554).

Almost surely, 2^399533324 is an apocalyptic number.

It is an amenable number.

399533324 is a deficient number, since it is larger than the sum of its proper divisors (299650000).

399533324 is a wasteful number, since it uses less digits than its factorization.

399533324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99883335 (or 99883333 counting only the distinct ones).

The product of its digits is 262440, while the sum is 41.

The square root of 399533324 is about 19988.3296950996. The cubic root of 399533324 is about 736.5196467068.

The spelling of 399533324 in words is "three hundred ninety-nine million, five hundred thirty-three thousand, three hundred twenty-four".