11813022 has 48 divisors (see below), whose sum is σ = 29025360. Its totient is φ = 3442176.

The previous prime is 11813017. The next prime is 11813029. The reversal of 11813022 is 22031811.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11812986 and 11813004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11813029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3118 + ... + 5774.

It is an arithmetic number, because the mean of its divisors is an integer number (604695).

Almost surely, 2^11813022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11813022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14512680).

11813022 is an abundant number, since it is smaller than the sum of its proper divisors (17212338).

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

11813022 is a wasteful number, since it uses less digits than its factorization.

11813022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2694 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 11813022 is about 3437.0077102037. The cubic root of 11813022 is about 227.7475275491.

Adding to 11813022 its reverse (22031811), we get a palindrome (33844833).

The spelling of 11813022 in words is "eleven million, eight hundred thirteen thousand, twenty-two".