2115138344 has 16 divisors (see below), whose sum is σ = 4326419520. Its totient is φ = 961426480.

The previous prime is 2115138341. The next prime is 2115138359. The reversal of 2115138344 is 4438315112.

It is a self number, because there is not a number n which added to its sum of digits gives 2115138344.

It is not an unprimeable number, because it can be changed into a prime (2115138341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12017744 + ... + 12017919.

It is an arithmetic number, because the mean of its divisors is an integer number (270401220).

Almost surely, 2^2115138344 is an apocalyptic number.

It is an amenable number.

2115138344 is an abundant number, since it is smaller than the sum of its proper divisors (2211281176).

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

2115138344 is a wasteful number, since it uses less digits than its factorization.

2115138344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24035680 (or 24035676 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 2115138344 is about 45990.6332202548. The cubic root of 2115138344 is about 1283.6489191306.

It can be divided in two parts, 21151 and 38344, that added together give a palindrome (59495).

The spelling of 2115138344 in words is "two billion, one hundred fifteen million, one hundred thirty-eight thousand, three hundred forty-four".