22051450 has 12 divisors (see below), whose sum is σ = 41015790. Its totient is φ = 8820560.

The previous prime is 22051433. The next prime is 22051459. The reversal of 22051450 is 5415022.

It can be written as a sum of positive squares in 3 ways, for example, as 17065161 + 4986289 = 4131^2 + 2233^2 .

It is not an unprimeable number, because it can be changed into a prime (22051459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220465 + ... + 220564.

Almost surely, 2^22051450 is an apocalyptic number.

22051450 is a deficient number, since it is larger than the sum of its proper divisors (18964340).

22051450 is a wasteful number, since it uses less digits than its factorization.

22051450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441041 (or 441036 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22051450 is about 4695.8971453813. The cubic root of 22051450 is about 280.4221947114.

Adding to 22051450 its reverse (5415022), we get a palindrome (27466472).

It can be divided in two parts, 2205 and 1450, that added together give a triangular number (3655 = T₈₅).

The spelling of 22051450 in words is "twenty-two million, fifty-one thousand, four hundred fifty".