22230400 has 48 divisors (see below), whose sum is σ = 54923940. Its totient is φ = 8890880.

The previous prime is 22230391. The next prime is 22230421. The reversal of 22230400 is 403222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274 + ... + 6673.

Almost surely, 2^22230400 is an apocalyptic number.

22230400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27461970).

22230400 is an abundant number, since it is smaller than the sum of its proper divisors (32693540).

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

22230400 is an equidigital number, since it uses as much as digits as its factorization.

22230400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971 (or 6954 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 22230400 is about 4714.9125124439. The cubic root of 22230400 is about 281.1787045622.

Adding to 22230400 its reverse (403222), we get a palindrome (22633622).

The spelling of 22230400 in words is "twenty-two million, two hundred thirty thousand, four hundred".