439390004 has 12 divisors (see below), whose sum is σ = 769408164. Its totient is φ = 219559104.

The previous prime is 439389949. The next prime is 439390031. The reversal of 439390004 is 400093934.

It can be written as a sum of positive squares in 2 ways, for example, as 110040100 + 329349904 = 10490^2 + 18148^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26519 + ... + 39774.

It is an arithmetic number, because the mean of its divisors is an integer number (64117347).

Almost surely, 2^439390004 is an apocalyptic number.

It is an amenable number.

439390004 is a deficient number, since it is larger than the sum of its proper divisors (330018160).

439390004 is a wasteful number, since it uses less digits than its factorization.

439390004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67954 (or 67952 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 439390004 is about 20961.6317112958. The cubic root of 439390004 is about 760.2388469052.

The spelling of 439390004 in words is "four hundred thirty-nine million, three hundred ninety thousand, four".