22053330 has 128 divisors (see below), whose sum is σ = 64995840. Its totient is φ = 5287680.

The previous prime is 22053313. The next prime is 22053331. The reversal of 22053330 is 3335022.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22053331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 214059 + ... + 214161.

It is an arithmetic number, because the mean of its divisors is an integer number (507780).

Almost surely, 2^22053330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22053330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32497920).

22053330 is an abundant number, since it is smaller than the sum of its proper divisors (42942510).

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

22053330 is a wasteful number, since it uses less digits than its factorization.

22053330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 22053330 is about 4696.0973158571. The cubic root of 22053330 is about 280.4301636317.

Adding to 22053330 its reverse (3335022), we get a palindrome (25388352).

The spelling of 22053330 in words is "twenty-two million, fifty-three thousand, three hundred thirty".