22223502 has 48 divisors (see below), whose sum is σ = 57932160. Its totient is φ = 6014736.

The previous prime is 22223501. The next prime is 22223519. The reversal of 22223502 is 20532222.

It is a super-2 number, since 2×22223502² = 987768082288008, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22223501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2248 + ... + 7035.

It is an arithmetic number, because the mean of its divisors is an integer number (1206920).

Almost surely, 2^22223502 is an apocalyptic number.

22223502 is an abundant number, since it is smaller than the sum of its proper divisors (35708658).

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

22223502 is a wasteful number, since it uses less digits than its factorization.

22223502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9317 (or 9314 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22223502 is about 4714.1809468878. The cubic root of 22223502 is about 281.1496186956.

Adding to 22223502 its reverse (20532222), we get a palindrome (42755724).

The spelling of 22223502 in words is "twenty-two million, two hundred twenty-three thousand, five hundred two".