399296373 has 32 divisors (see below), whose sum is σ = 616912896. Its totient is φ = 225021888.

The previous prime is 399296371. The next prime is 399296377. The reversal of 399296373 is 373692993.

It is not a de Polignac number, because 399296373 - 2¹ = 399296371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399296371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 537040 + ... + 537782.

It is an arithmetic number, because the mean of its divisors is an integer number (19278528).

Almost surely, 2^399296373 is an apocalyptic number.

It is an amenable number.

399296373 is a deficient number, since it is larger than the sum of its proper divisors (217616523).

399296373 is a wasteful number, since it uses less digits than its factorization.

399296373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its digits is 1653372, while the sum is 51.

The square root of 399296373 is about 19982.4015823924. The cubic root of 399296373 is about 736.3740154846.

The spelling of 399296373 in words is "three hundred ninety-nine million, two hundred ninety-six thousand, three hundred seventy-three".