439676428 has 6 divisors (see below), whose sum is σ = 769433756. Its totient is φ = 219838212.

The previous prime is 439676401. The next prime is 439676467. The reversal of 439676428 is 824676934.

It is a super-2 number, since 2×439676428² = 386630722677678368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54959550 + ... + 54959557.

Almost surely, 2^439676428 is an apocalyptic number.

It is an amenable number.

439676428 is a deficient number, since it is larger than the sum of its proper divisors (329757328).

439676428 is a wasteful number, since it uses less digits than its factorization.

439676428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109919111 (or 109919109 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The square root of 439676428 is about 20968.4626999692. The cubic root of 439676428 is about 760.4040026528.

The spelling of 439676428 in words is "four hundred thirty-nine million, six hundred seventy-six thousand, four hundred twenty-eight".