383439394 has 16 divisors (see below), whose sum is σ = 646333632. Its totient is φ = 169277328.

The previous prime is 383439389. The next prime is 383439409. The reversal of 383439394 is 493934383.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320004 + ... + 321199.

It is an arithmetic number, because the mean of its divisors is an integer number (40395852).

Almost surely, 2^383439394 is an apocalyptic number.

383439394 is a deficient number, since it is larger than the sum of its proper divisors (262894238).

383439394 is a wasteful number, since it uses less digits than its factorization.

383439394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641241.

The product of its digits is 839808, while the sum is 46.

The square root of 383439394 is about 19581.6085651818. The cubic root of 383439394 is about 726.4943535074.

The spelling of 383439394 in words is "three hundred eighty-three million, four hundred thirty-nine thousand, three hundred ninety-four".