439728706 has 8 divisors (see below), whose sum is σ = 660971520. Its totient is φ = 219404868.

The previous prime is 439728703. The next prime is 439728739. The reversal of 439728706 is 607827934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×439728706² = 386722669760868872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (439728703) 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, 228546 + ... + 230461.

It is an arithmetic number, because the mean of its divisors is an integer number (82621440).

Almost surely, 2^439728706 is an apocalyptic number.

439728706 is a deficient number, since it is larger than the sum of its proper divisors (221242814).

439728706 is a wasteful number, since it uses less digits than its factorization.

439728706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459488.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 439728706 is about 20969.7092492958. The cubic root of 439728706 is about 760.4341390762.

The spelling of 439728706 in words is "four hundred thirty-nine million, seven hundred twenty-eight thousand, seven hundred six".