399366282 has 32 divisors (see below), whose sum is σ = 960883200. Its totient is φ = 108098928.

The previous prime is 399366269. The next prime is 399366287. The reversal of 399366282 is 282663993.

It is a super-3 number, since 3×399366282³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (399366287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249432 + ... + 251027.

It is an arithmetic number, because the mean of its divisors is an integer number (30027600).

Almost surely, 2^399366282 is an apocalyptic number.

399366282 is an abundant number, since it is smaller than the sum of its proper divisors (561516918).

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

399366282 is a wasteful number, since it uses less digits than its factorization.

399366282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500490.

The product of its digits is 839808, while the sum is 48.

The square root of 399366282 is about 19984.1507700477. The cubic root of 399366282 is about 736.4169878818.

The spelling of 399366282 in words is "three hundred ninety-nine million, three hundred sixty-six thousand, two hundred eighty-two".