11722230 has 96 divisors (see below), whose sum is σ = 33729696. Its totient is φ = 2806272.

The previous prime is 11722201. The next prime is 11722283. The reversal of 11722230 is 3222711.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50194 + ... + 50426.

It is an arithmetic number, because the mean of its divisors is an integer number (351351).

Almost surely, 2^11722230 is an apocalyptic number.

11722230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11722230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16864848).

11722230 is an abundant number, since it is smaller than the sum of its proper divisors (22007466).

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

11722230 is a wasteful number, since it uses less digits than its factorization.

11722230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 11722230 is about 3423.7742332111. The cubic root of 11722230 is about 227.1625557176.

Adding to 11722230 its reverse (3222711), we get a palindrome (14944941).

The spelling of 11722230 in words is "eleven million, seven hundred twenty-two thousand, two hundred thirty".