1438687113 has 16 divisors (see below), whose sum is σ = 1934150400. Its totient is φ = 951189840.

The previous prime is 1438687073. The next prime is 1438687157. The reversal of 1438687113 is 3117868341.

It is not a de Polignac number, because 1438687113 - 2¹⁰ = 1438686089 is a prime.

It is a super-2 number, since 2×1438687113² = 4139641218224549538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1438687193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674058 + ... + 676188.

It is an arithmetic number, because the mean of its divisors is an integer number (120884400).

Almost surely, 2^1438687113 is an apocalyptic number.

It is an amenable number.

1438687113 is a deficient number, since it is larger than the sum of its proper divisors (495463287).

1438687113 is a wasteful number, since it uses less digits than its factorization.

1438687113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892.

The product of its digits is 96768, while the sum is 42.

The square root of 1438687113 is about 37930.0291721480. The cubic root of 1438687113 is about 1128.8999430931.

It can be divided in two parts, 1438 and 687113, that added together give a triangular number (688551 = T₁₁₇₃).

The spelling of 1438687113 in words is "one billion, four hundred thirty-eight million, six hundred eighty-seven thousand, one hundred thirteen".