11218938 has 8 divisors (see below), whose sum is σ = 22437888. Its totient is φ = 3739644.

The previous prime is 11218903. The next prime is 11218943. The reversal of 11218938 is 83981211.

It is a sphenic number, since it is the product of 3 distinct primes.

11218938 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11218899 and 11218908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934906 + ... + 934917.

It is an arithmetic number, because the mean of its divisors is an integer number (2804736).

Almost surely, 2^11218938 is an apocalyptic number.

11218938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11218938 is a wasteful number, since it uses less digits than its factorization.

11218938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869828.

The product of its digits is 3456, while the sum is 33.

The square root of 11218938 is about 3349.4683160167. The cubic root of 11218938 is about 223.8638229488.

The spelling of 11218938 in words is "eleven million, two hundred eighteen thousand, nine hundred thirty-eight".