22223530 has 32 divisors (see below), whose sum is σ = 46500480. Its totient is φ = 7488960.

The previous prime is 22223519. The next prime is 22223533. The reversal of 22223530 is 3532222.

It is a junction number, because it is equal to n+sod(n) for n = 22223498 and 22223507.

It is not an unprimeable number, because it can be changed into a prime (22223533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1440 + ... + 6820.

It is an arithmetic number, because the mean of its divisors is an integer number (1453140).

Almost surely, 2^22223530 is an apocalyptic number.

22223530 is an abundant number, since it is smaller than the sum of its proper divisors (24276950).

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

22223530 is a wasteful number, since it uses less digits than its factorization.

22223530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 22223530 is about 4714.1839166498. The cubic root of 22223530 is about 281.1497367715.

Adding to 22223530 its reverse (3532222), we get a palindrome (25755752).

The spelling of 22223530 in words is "twenty-two million, two hundred twenty-three thousand, five hundred thirty".