1439976364 has 24 divisors (see below), whose sum is σ = 2784202848. Its totient is φ = 648172800.

The previous prime is 1439976337. The next prime is 1439976383. The reversal of 1439976364 is 4636799341.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458787 + ... + 461914.

It is an arithmetic number, because the mean of its divisors is an integer number (116008452).

Almost surely, 2^1439976364 is an apocalyptic number.

It is an amenable number.

1439976364 is a deficient number, since it is larger than the sum of its proper divisors (1344226484).

1439976364 is a wasteful number, since it uses less digits than its factorization.

1439976364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920745 (or 920743 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 52.

The square root of 1439976364 is about 37947.0204890977. The cubic root of 1439976364 is about 1129.2370561991.

The spelling of 1439976364 in words is "one billion, four hundred thirty-nine million, nine hundred seventy-six thousand, three hundred sixty-four".