399952335 has 16 divisors (see below), whose sum is σ = 655532640. Its totient is φ = 208104960.

The previous prime is 399952321. The next prime is 399952367. The reversal of 399952335 is 533259993.

It is not a de Polignac number, because 399952335 - 2⁶ = 399952271 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324550 + ... + 325779.

It is an arithmetic number, because the mean of its divisors is an integer number (40970790).

Almost surely, 2^399952335 is an apocalyptic number.

399952335 is a deficient number, since it is larger than the sum of its proper divisors (255580305).

399952335 is a wasteful number, since it uses less digits than its factorization.

399952335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650378.

The product of its digits is 984150, while the sum is 48.

The square root of 399952335 is about 19998.8083394986. The cubic root of 399952335 is about 736.7770320053. Note that the first 3 decimals are identical.

The spelling of 399952335 in words is "three hundred ninety-nine million, nine hundred fifty-two thousand, three hundred thirty-five".