1438288912 has 20 divisors (see below), whose sum is σ = 2787280060. Its totient is φ = 718990848.

The previous prime is 1438288909. The next prime is 1438288921. The reversal of 1438288912 is 2198828341.

It can be written as a sum of positive squares in 2 ways, for example, as 11262736 + 1427026176 = 3356^2 + 37776^2 .

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, 123868 + ... + 134980.

It is an arithmetic number, because the mean of its divisors is an integer number (139364003).

Almost surely, 2^1438288912 is an apocalyptic number.

It is an amenable number.

1438288912 is a deficient number, since it is larger than the sum of its proper divisors (1348991148).

1438288912 is a wasteful number, since it uses less digits than its factorization.

1438288912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19210 (or 19204 counting only the distinct ones).

The product of its digits is 221184, while the sum is 46.

The square root of 1438288912 is about 37924.7796565781. The cubic root of 1438288912 is about 1128.7957808649.

The spelling of 1438288912 in words is "one billion, four hundred thirty-eight million, two hundred eighty-eight thousand, nine hundred twelve".