394014439 has 12 divisors (see below), whose sum is σ = 493601304. Its totient is φ = 311747184.

The previous prime is 394014431. The next prime is 394014497. The reversal of 394014439 is 934410493.

It is not a de Polignac number, because 394014439 - 2³ = 394014431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394014398 and 394014407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394014431) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 308637 + ... + 309910.

It is an arithmetic number, because the mean of its divisors is an integer number (41133442).

Almost surely, 2^394014439 is an apocalyptic number.

394014439 is a deficient number, since it is larger than the sum of its proper divisors (99586865).

394014439 is a wasteful number, since it uses less digits than its factorization.

394014439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618574 (or 618567 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 394014439 is about 19849.7969511025. The cubic root of 394014439 is about 733.1126483103.

The spelling of 394014439 in words is "three hundred ninety-four million, fourteen thousand, four hundred thirty-nine".