399383435 has 16 divisors (see below), whose sum is σ = 528226272. Its totient is φ = 287462400.

The previous prime is 399383423. The next prime is 399383437. The reversal of 399383435 is 534383993.

It is not a de Polignac number, because 399383435 - 2¹⁴ = 399367051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 399383435.

It is not an unprimeable number, because it can be changed into a prime (399383437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32096 + ... + 42765.

It is an arithmetic number, because the mean of its divisors is an integer number (33014142).

Almost surely, 2^399383435 is an apocalyptic number.

399383435 is a deficient number, since it is larger than the sum of its proper divisors (128842837).

399383435 is a wasteful number, since it uses less digits than its factorization.

399383435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74974.

The product of its digits is 1049760, while the sum is 47.

The square root of 399383435 is about 19984.5799305364. The cubic root of 399383435 is about 736.4275309015.

The spelling of 399383435 in words is "three hundred ninety-nine million, three hundred eighty-three thousand, four hundred thirty-five".