399241233 has 24 divisors (see below), whose sum is σ = 587242656. Its totient is φ = 261331200.

The previous prime is 399241223. The next prime is 399241247. The reversal of 399241233 is 332142993.

399241233 is a `hidden beast` number, since 399 + 241 + 23 + 3 = 666.

It is not a de Polignac number, because 399241233 - 2⁶ = 399241169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399241223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112618 + ... + 116108.

It is an arithmetic number, because the mean of its divisors is an integer number (24468444).

Almost surely, 2^399241233 is an apocalyptic number.

It is an amenable number.

399241233 is a deficient number, since it is larger than the sum of its proper divisors (188001423).

399241233 is a wasteful number, since it uses less digits than its factorization.

399241233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725 (or 3722 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 399241233 is about 19981.0218207178. The cubic root of 399241233 is about 736.3401179129.

The spelling of 399241233 in words is "three hundred ninety-nine million, two hundred forty-one thousand, two hundred thirty-three".