22306400 has 36 divisors (see below), whose sum is σ = 54457452. Its totient is φ = 8922240.

The previous prime is 22306381. The next prime is 22306409. The reversal of 22306400 is 460322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22306409) 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 5 ways as a sum of consecutive naturals, for example, 13142 + ... + 14741.

It is an arithmetic number, because the mean of its divisors is an integer number (1512707).

Almost surely, 2^22306400 is an apocalyptic number.

22306400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22306400 is an abundant number, since it is smaller than the sum of its proper divisors (32151052).

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

22306400 is a wasteful number, since it uses less digits than its factorization.

22306400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27903 (or 27890 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22306400 is about 4722.9651703141. The cubic root of 22306400 is about 281.4987659097.

Adding to 22306400 its reverse (460322), we get a palindrome (22766722).

The spelling of 22306400 in words is "twenty-two million, three hundred six thousand, four hundred".