2791138 has 24 divisors (see below), whose sum is σ = 5130000. Its totient is φ = 1132488.

The previous prime is 2791123. The next prime is 2791141. The reversal of 2791138 is 8311972.

2791138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1113 + ... + 2611.

It is an arithmetic number, because the mean of its divisors is an integer number (213750).

2^2791138 is an apocalyptic number.

2791138 is a deficient number, since it is larger than the sum of its proper divisors (2338862).

2791138 is a wasteful number, since it uses less digits than its factorization.

2791138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534 (or 1527 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 2791138 is about 1670.6699255089. The cubic root of 2791138 is about 140.7971194852.

The spelling of 2791138 in words is "two million, seven hundred ninety-one thousand, one hundred thirty-eight".