11438938 has 16 divisors (see below), whose sum is σ = 20242944. Its totient is φ = 4744080.

The previous prime is 11438929. The next prime is 11438939. The reversal of 11438938 is 83983411.

It is a junction number, because it is equal to n+sod(n) for n = 11438897 and 11438906.

It is not an unprimeable number, because it can be changed into a prime (11438939) 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 7 ways as a sum of consecutive naturals, for example, 12745 + ... + 13612.

It is an arithmetic number, because the mean of its divisors is an integer number (1265184).

Almost surely, 2^11438938 is an apocalyptic number.

11438938 is a deficient number, since it is larger than the sum of its proper divisors (8804006).

11438938 is a wasteful number, since it uses less digits than its factorization.

11438938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26397.

The product of its digits is 20736, while the sum is 37.

The square root of 11438938 is about 3382.1499079727. The cubic root of 11438938 is about 225.3176615931.

The spelling of 11438938 in words is "eleven million, four hundred thirty-eight thousand, nine hundred thirty-eight".