1439972368 has 20 divisors (see below), whose sum is σ = 2790735568. Its totient is φ = 719782560.

The previous prime is 1439972299. The next prime is 1439972393. The reversal of 1439972368 is 8632799341.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57283 + ... + 78493.

Almost surely, 2^1439972368 is an apocalyptic number.

It is an amenable number.

1439972368 is a deficient number, since it is larger than the sum of its proper divisors (1350763200).

1439972368 is a wasteful number, since it uses less digits than its factorization.

1439972368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25462 (or 25456 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 52.

The square root of 1439972368 is about 37946.9678367060. The cubic root of 1439972368 is about 1129.2360116367.

The spelling of 1439972368 in words is "one billion, four hundred thirty-nine million, nine hundred seventy-two thousand, three hundred sixty-eight".