22022802 has 12 divisors (see below), whose sum is σ = 47716110. Its totient is φ = 7340928.

The previous prime is 22022801. The next prime is 22022809. The reversal of 22022802 is 20822022.

It can be written as a sum of positive squares in only one way, i.e., 20875761 + 1147041 = 4569^2 + 1071^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1223489 = 22022802 / (2 + 2 + 0 + 2 + 2 + 8 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (22022801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611727 + ... + 611762.

Almost surely, 2^22022802 is an apocalyptic number.

22022802 is an abundant number, since it is smaller than the sum of its proper divisors (25693308).

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

22022802 is a wasteful number, since it uses less digits than its factorization.

22022802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223497 (or 1223494 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 22022802 is about 4692.8458316889. The cubic root of 22022802 is about 280.3007058531.

Adding to 22022802 its reverse (20822022), we get a palindrome (42844824).

The spelling of 22022802 in words is "twenty-two million, twenty-two thousand, eight hundred two".