439438 has 16 divisors (see below), whose sum is σ = 707616. Its totient is φ = 204160.

The previous prime is 439429. The next prime is 439441. The reversal of 439438 is 834934.

It is a congruent number.

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, 1770 + ... + 2002.

It is an arithmetic number, because the mean of its divisors is an integer number (44226).

2⁴³⁹⁴³⁸ is an apocalyptic number.

439438 is a deficient number, since it is larger than the sum of its proper divisors (268178).

439438 is a wasteful number, since it uses less digits than its factorization.

439438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299.

The product of its digits is 10368, while the sum is 31.

The square root of 439438 is about 662.9011992748. The cubic root of 439438 is about 76.0266527018.

The spelling of 439438 in words is "four hundred thirty-nine thousand, four hundred thirty-eight".