439972 has 12 divisors (see below), whose sum is σ = 829276. Its totient is φ = 203040.

The previous prime is 439969. The next prime is 439973. The reversal of 439972 is 279934.

It can be written as a sum of positive squares in 2 ways, for example, as 215296 + 224676 = 464^2 + 474^2 .

It is a d-powerful number, because it can be written as 4⁹ + 3¹¹ + 9² + 9² + 7 + 2⁹ .

It is not an unprimeable number, because it can be changed into a prime (439973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4179 + ... + 4282.

2⁴³⁹⁹⁷² is an apocalyptic number.

It is an amenable number.

439972 is a deficient number, since it is larger than the sum of its proper divisors (389304).

439972 is a wasteful number, since it uses less digits than its factorization.

439972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478 (or 8476 counting only the distinct ones).

The product of its digits is 13608, while the sum is 34.

The square root of 439972 is about 663.3038519412. The cubic root of 439972 is about 76.0574358072.

The spelling of 439972 in words is "four hundred thirty-nine thousand, nine hundred seventy-two".