399492282 has 32 divisors (see below), whose sum is σ = 966840192. Its totient is φ = 107426304.

The previous prime is 399492263. The next prime is 399492283. The reversal of 399492282 is 282294993.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (399492283) 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, 279043 + ... + 280470.

It is an arithmetic number, because the mean of its divisors is an integer number (30213756).

Almost surely, 2^399492282 is an apocalyptic number.

399492282 is an abundant number, since it is smaller than the sum of its proper divisors (567347910).

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

399492282 is a wasteful number, since it uses less digits than its factorization.

399492282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559542.

The product of its digits is 559872, while the sum is 48.

The square root of 399492282 is about 19987.3030196673. The cubic root of 399492282 is about 736.4944262203.

The spelling of 399492282 in words is "three hundred ninety-nine million, four hundred ninety-two thousand, two hundred eighty-two".