399303914 has 4 divisors (see below), whose sum is σ = 598955874. Its totient is φ = 199651956.

The previous prime is 399303913. The next prime is 399303937. The reversal of 399303914 is 419303993.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 289578289 + 109725625 = 17017^2 + 10475^2 .

It is not an unprimeable number, because it can be changed into a prime (399303913) 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 as a sum of consecutive naturals, namely, 99825977 + ... + 99825980.

Almost surely, 2^399303914 is an apocalyptic number.

399303914 is a deficient number, since it is larger than the sum of its proper divisors (199651960).

399303914 is a wasteful number, since it uses less digits than its factorization.

399303914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199651959.

The product of its (nonzero) digits is 78732, while the sum is 41.

The square root of 399303914 is about 19982.5902725347. The cubic root of 399303914 is about 736.3786511069.

The spelling of 399303914 in words is "three hundred ninety-nine million, three hundred three thousand, nine hundred fourteen".