439902 has 12 divisors (see below), whose sum is σ = 953160. Its totient is φ = 146628.

The previous prime is 439891. The next prime is 439903. The reversal of 439902 is 209934.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439903) by changing a digit.

439902 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12202 + ... + 12237.

It is an arithmetic number, because the mean of its divisors is an integer number (79430).

2⁴³⁹⁹⁰² is an apocalyptic number.

439902 is an abundant number, since it is smaller than the sum of its proper divisors (513258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

439902 is a wasteful number, since it uses less digits than its factorization.

439902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24447 (or 24444 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 439902 is about 663.2510836780. The cubic root of 439902 is about 76.0534019877.

The spelling of 439902 in words is "four hundred thirty-nine thousand, nine hundred two".