22520450 has 24 divisors (see below), whose sum is σ = 43711488. Its totient is φ = 8616080.

The previous prime is 22520447. The next prime is 22520479. The reversal of 22520450 is 5402522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8642 + ... + 10941.

It is an arithmetic number, because the mean of its divisors is an integer number (1821312).

Almost surely, 2^22520450 is an apocalyptic number.

22520450 is a deficient number, since it is larger than the sum of its proper divisors (21191038).

22520450 is a wasteful number, since it uses less digits than its factorization.

22520450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19618 (or 19613 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 22520450 is about 4745.5716199421. The cubic root of 22520450 is about 282.3963124841.

Adding to 22520450 its reverse (5402522), we get a palindrome (27922972).

The spelling of 22520450 in words is "twenty-two million, five hundred twenty thousand, four hundred fifty".