11918322 has 72 divisors (see below), whose sum is σ = 29277612. Its totient is φ = 3481920.

The previous prime is 11918321. The next prime is 11918323. The reversal of 11918322 is 22381911.

It is an interprime number because it is at equal distance from previous prime (11918321) and next prime (11918323).

It can be written as a sum of positive squares in 2 ways, for example, as 11840481 + 77841 = 3441^2 + 279^2 .

It is not an unprimeable number, because it can be changed into a prime (11918321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 224848 + ... + 224900.

Almost surely, 2^11918322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11918322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14638806).

11918322 is an abundant number, since it is smaller than the sum of its proper divisors (17359290).

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

11918322 is a wasteful number, since it uses less digits than its factorization.

11918322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 102 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11918322 is about 3452.2922819483. The cubic root of 11918322 is about 228.4222323605.

The spelling of 11918322 in words is "eleven million, nine hundred eighteen thousand, three hundred twenty-two".