11800438 has 16 divisors (see below), whose sum is σ = 19262880. Its totient is φ = 5389056.

The previous prime is 11800433. The next prime is 11800441. The reversal of 11800438 is 83400811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11800433) 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, 183 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (1203930).

Almost surely, 2^11800438 is an apocalyptic number.

11800438 is a deficient number, since it is larger than the sum of its proper divisors (7462442).

11800438 is a wasteful number, since it uses less digits than its factorization.

11800438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 11800438 is about 3435.1765602368. The cubic root of 11800438 is about 227.6666283187. Note that the first 4 decimals are identical.

The spelling of 11800438 in words is "eleven million, eight hundred thousand, four hundred thirty-eight".