399003282 has 24 divisors (see below), whose sum is σ = 867085596. Its totient is φ = 132604416.

The previous prime is 399003281. The next prime is 399003289. The reversal of 399003282 is 282300993.

It can be written as a sum of positive squares in 2 ways, for example, as 398361681 + 641601 = 19959^2 + 801^2 .

It is not an unprimeable number, because it can be changed into a prime (399003281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26823 + ... + 38954.

Almost surely, 2^399003282 is an apocalyptic number.

399003282 is an abundant number, since it is smaller than the sum of its proper divisors (468082314).

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

399003282 is a wasteful number, since it uses less digits than its factorization.

399003282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66122 (or 66119 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 399003282 is about 19975.0665080244. The cubic root of 399003282 is about 736.1938006207.

The spelling of 399003282 in words is "three hundred ninety-nine million, three thousand, two hundred eighty-two".