439874 has 4 divisors (see below), whose sum is σ = 659814. Its totient is φ = 219936.

The previous prime is 439867. The next prime is 439883. The reversal of 439874 is 478934.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 354025 + 85849 = 595^2 + 293^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109967 + ... + 109970.

2⁴³⁹⁸⁷⁴ is an apocalyptic number.

439874 is a deficient number, since it is larger than the sum of its proper divisors (219940).

439874 is a wasteful number, since it uses less digits than its factorization.

439874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219939.

The product of its digits is 24192, while the sum is 35.

The square root of 439874 is about 663.2299751971. The cubic root of 439874 is about 76.0517883401.

Subtracting 439874 from its reverse (478934), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 439874 in words is "four hundred thirty-nine thousand, eight hundred seventy-four".