439969971 has 24 divisors (see below), whose sum is σ = 683299584. Its totient is φ = 251081040.

The previous prime is 439969951. The next prime is 439969993. The reversal of 439969971 is 179969934.

It is not a de Polignac number, because 439969971 - 2¹¹ = 439967923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439969931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150106 + ... + 153008.

It is an arithmetic number, because the mean of its divisors is an integer number (28470816).

Almost surely, 2^439969971 is an apocalyptic number.

439969971 is a deficient number, since it is larger than the sum of its proper divisors (243329613).

439969971 is a wasteful number, since it uses less digits than its factorization.

439969971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951 (or 3944 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 57.

The square root of 439969971 is about 20975.4611629876. The cubic root of 439969971 is about 760.5731889011.

The spelling of 439969971 in words is "four hundred thirty-nine million, nine hundred sixty-nine thousand, nine hundred seventy-one".