439806864 has 160 divisors (see below), whose sum is σ = 1412695296. Its totient is φ = 115015680.

The previous prime is 439806841. The next prime is 439806893. The reversal of 439806864 is 468608934.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210304 + ... + 212384.

Almost surely, 2^439806864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439806864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706347648).

439806864 is an abundant number, since it is smaller than the sum of its proper divisors (972888432).

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

439806864 is a wasteful number, since it uses less digits than its factorization.

439806864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153 (or 2147 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The square root of 439806864 is about 20971.5727593330. The cubic root of 439806864 is about 760.4791899524.

The spelling of 439806864 in words is "four hundred thirty-nine million, eight hundred six thousand, eight hundred sixty-four".