399119930 has 16 divisors (see below), whose sum is σ = 783726624. Its totient is φ = 145134480.

The previous prime is 399119899. The next prime is 399119939. The reversal of 399119930 is 39911993.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (399119939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814072 + ... + 1814291.

It is an arithmetic number, because the mean of its divisors is an integer number (48982914).

Almost surely, 2^399119930 is an apocalyptic number.

399119930 is a deficient number, since it is larger than the sum of its proper divisors (384606694).

399119930 is a wasteful number, since it uses less digits than its factorization.

399119930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628381.

The product of its (nonzero) digits is 59049, while the sum is 44.

The square root of 399119930 is about 19977.9861347434. The cubic root of 399119930 is about 736.2655353417.

The spelling of 399119930 in words is "three hundred ninety-nine million, one hundred nineteen thousand, nine hundred thirty".