22433220 has 48 divisors (see below), whose sum is σ = 69793920. Its totient is φ = 5982048.

The previous prime is 22433219. The next prime is 22433221. The reversal of 22433220 is 2233422.

It is an interprime number because it is at equal distance from previous prime (22433219) and next prime (22433221).

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

It is a junction number, because it is equal to n+sod(n) for n = 22433193 and 22433202.

It is not an unprimeable number, because it can be changed into a prime (22433221) 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, 20232 + ... + 21311.

It is an arithmetic number, because the mean of its divisors is an integer number (1454040).

Almost surely, 2^22433220 is an apocalyptic number.

22433220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22433220 is an abundant number, since it is smaller than the sum of its proper divisors (47360700).

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

22433220 is a wasteful number, since it uses less digits than its factorization.

22433220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41561 (or 41553 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22433220 is about 4736.3720293068. The cubic root of 22433220 is about 282.0312323941.

Adding to 22433220 its reverse (2233422), we get a palindrome (24666642).

The spelling of 22433220 in words is "twenty-two million, four hundred thirty-three thousand, two hundred twenty".