1438972824 has 64 divisors (see below), whose sum is σ = 3632243040. Its totient is φ = 475038720.

The previous prime is 1438972819. The next prime is 1438972831. The reversal of 1438972824 is 4282798341.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1962762 + ... + 1963494.

Almost surely, 2^1438972824 is an apocalyptic number.

It is an amenable number.

1438972824 is an abundant number, since it is smaller than the sum of its proper divisors (2193270216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1438972824 is a wasteful number, since it uses less digits than its factorization.

1438972824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420 (or 1416 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 1438972824 is about 37933.7952754533. The cubic root of 1438972824 is about 1128.9746681161.

The spelling of 1438972824 in words is "one billion, four hundred thirty-eight million, nine hundred seventy-two thousand, eight hundred twenty-four".