20222450 has 12 divisors (see below), whose sum is σ = 37613850. Its totient is φ = 8088960.

The previous prime is 20222437. The next prime is 20222459. The reversal of 20222450 is 5422202.

It can be written as a sum of positive squares in 3 ways, for example, as 9653449 + 10569001 = 3107^2 + 3251^2 .

It is not an unprimeable number, because it can be changed into a prime (20222459) 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, 202175 + ... + 202274.

Almost surely, 2^20222450 is an apocalyptic number.

20222450 is a deficient number, since it is larger than the sum of its proper divisors (17391400).

20222450 is a wasteful number, since it uses less digits than its factorization.

20222450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404461 (or 404456 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20222450 is about 4496.9378470244. The cubic root of 20222450 is about 272.4444237585. Note that the first 4 decimals are identical.

Adding to 20222450 its reverse (5422202), we get a palindrome (25644652).

The spelling of 20222450 in words is "twenty million, two hundred twenty-two thousand, four hundred fifty".