1438117413 has 32 divisors (see below), whose sum is σ = 2002868736. Its totient is φ = 917155008.

The previous prime is 1438117379. The next prime is 1438117427. The reversal of 1438117413 is 3147118341.

It is a happy number.

It is not a de Polignac number, because 1438117413 - 2⁶ = 1438117349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438117433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1961595 + ... + 1962327.

It is an arithmetic number, because the mean of its divisors is an integer number (62589648).

Almost surely, 2^1438117413 is an apocalyptic number.

It is an amenable number.

1438117413 is a deficient number, since it is larger than the sum of its proper divisors (564751323).

1438117413 is a wasteful number, since it uses less digits than its factorization.

1438117413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073.

The product of its digits is 8064, while the sum is 33.

The square root of 1438117413 is about 37922.5185476914. The cubic root of 1438117413 is about 1128.7509138842.

The spelling of 1438117413 in words is "one billion, four hundred thirty-eight million, one hundred seventeen thousand, four hundred thirteen".