11838258 has 32 divisors (see below), whose sum is σ = 26953920. Its totient is φ = 3849120.

The previous prime is 11838223. The next prime is 11838259. The reversal of 11838258 is 85283811.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11838259) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 460 + ... + 4887.

It is an arithmetic number, because the mean of its divisors is an integer number (842310).

Almost surely, 2^11838258 is an apocalyptic number.

11838258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11838258 is an abundant number, since it is smaller than the sum of its proper divisors (15115662).

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

11838258 is a wasteful number, since it uses less digits than its factorization.

11838258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399 (or 5393 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 11838258 is about 3440.6769682724. The cubic root of 11838258 is about 227.9095901929.

The spelling of 11838258 in words is "eleven million, eight hundred thirty-eight thousand, two hundred fifty-eight".