11438791 has 16 divisors (see below), whose sum is σ = 14158144. Its totient is φ = 8999424.

The previous prime is 11438771. The next prime is 11438803. The reversal of 11438791 is 19783411.

It is not a de Polignac number, because 11438791 - 2⁵ = 11438759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438701) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30481 + ... + 30853.

It is an arithmetic number, because the mean of its divisors is an integer number (884884).

Almost surely, 2^11438791 is an apocalyptic number.

11438791 is a deficient number, since it is larger than the sum of its proper divisors (2719353).

11438791 is a wasteful number, since it uses less digits than its factorization.

11438791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its digits is 6048, while the sum is 34.

The square root of 11438791 is about 3382.1281761636. The cubic root of 11438791 is about 225.3166964149.

The spelling of 11438791 in words is "eleven million, four hundred thirty-eight thousand, seven hundred ninety-one".