22045450 has 24 divisors (see below), whose sum is σ = 46863072. Its totient is φ = 7558320.

The previous prime is 22045427. The next prime is 22045459. The reversal of 22045450 is 5454022.

It is not an unprimeable number, because it can be changed into a prime (22045459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31144 + ... + 31843.

It is an arithmetic number, because the mean of its divisors is an integer number (1952628).

Almost surely, 2^22045450 is an apocalyptic number.

22045450 is an abundant number, since it is smaller than the sum of its proper divisors (24817622).

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

22045450 is a wasteful number, since it uses less digits than its factorization.

22045450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63006 (or 63001 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 22045450 is about 4695.2582463588. The cubic root of 22045450 is about 280.3967589571.

Adding to 22045450 its reverse (5454022), we get a palindrome (27499472).

The spelling of 22045450 in words is "twenty-two million, forty-five thousand, four hundred fifty".