11422818 has 48 divisors (see below), whose sum is σ = 27885312. Its totient is φ = 3348000.

The previous prime is 11422811. The next prime is 11422823. The reversal of 11422818 is 81822411.

It is a super-2 number, since 2×11422818² = 260961542122248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11422791 and 11422800.

It is not an unprimeable number, because it can be changed into a prime (11422811) 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 23 ways as a sum of consecutive naturals, for example, 5208 + ... + 7068.

It is an arithmetic number, because the mean of its divisors is an integer number (580944).

Almost surely, 2^11422818 is an apocalyptic number.

11422818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11422818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13942656).

11422818 is an abundant number, since it is smaller than the sum of its proper divisors (16462494).

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

11422818 is a wasteful number, since it uses less digits than its factorization.

11422818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1908 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 11422818 is about 3379.7659682292. The cubic root of 11422818 is about 225.2117709881.

The spelling of 11422818 in words is "eleven million, four hundred twenty-two thousand, eight hundred eighteen".