399578303 has 16 divisors (see below), whose sum is σ = 427315200. Its totient is φ = 372561120.

The previous prime is 399578279. The next prime is 399578323. The reversal of 399578303 is 303875993.

It is not a de Polignac number, because 399578303 - 2¹² = 399574207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399578323) 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, 373253 + ... + 374321.

It is an arithmetic number, because the mean of its divisors is an integer number (26707200).

Almost surely, 2^399578303 is an apocalyptic number.

399578303 is a deficient number, since it is larger than the sum of its proper divisors (27736897).

399578303 is a wasteful number, since it uses less digits than its factorization.

399578303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382.

The product of its (nonzero) digits is 612360, while the sum is 47.

The square root of 399578303 is about 19989.4547949663. The cubic root of 399578303 is about 736.5472845133.

The spelling of 399578303 in words is "three hundred ninety-nine million, five hundred seventy-eight thousand, three hundred three".