439013028 has 12 divisors (see below), whose sum is σ = 1024363760. Its totient is φ = 146337672.

The previous prime is 439013017. The next prime is 439013053. The reversal of 439013028 is 820310934.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 439012986 and 439013004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18292198 + ... + 18292221.

Almost surely, 2^439013028 is an apocalyptic number.

It is an amenable number.

439013028 is an abundant number, since it is smaller than the sum of its proper divisors (585350732).

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

439013028 is a wasteful number, since it uses less digits than its factorization.

439013028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36584426 (or 36584424 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 439013028 is about 20952.6377337079. The cubic root of 439013028 is about 760.0213682819.

The spelling of 439013028 in words is "four hundred thirty-nine million, thirteen thousand, twenty-eight".