399289482 has 24 divisors (see below), whose sum is σ = 865687680. Its totient is φ = 133010280.

The previous prime is 399289481. The next prime is 399289507. The reversal of 399289482 is 284982993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (399289481) 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, 25357 + ... + 37967.

It is an arithmetic number, because the mean of its divisors is an integer number (36070320).

Almost surely, 2^399289482 is an apocalyptic number.

399289482 is an abundant number, since it is smaller than the sum of its proper divisors (466398198).

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

399289482 is a wasteful number, since it uses less digits than its factorization.

399289482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14378 (or 14375 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 399289482 is about 19982.2291549266. The cubic root of 399289482 is about 736.3697793809.

The spelling of 399289482 in words is "three hundred ninety-nine million, two hundred eighty-nine thousand, four hundred eighty-two".