22444430 has 16 divisors (see below), whose sum is σ = 40474080. Its totient is φ = 8961312.

The previous prime is 22444423. The next prime is 22444439. The reversal of 22444430 is 3444422.

It is a junction number, because it is equal to n+sod(n) for n = 22444396 and 22444405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4736 + ... + 8204.

It is an arithmetic number, because the mean of its divisors is an integer number (2529630).

Almost surely, 2^22444430 is an apocalyptic number.

22444430 is a deficient number, since it is larger than the sum of its proper divisors (18029650).

22444430 is a wasteful number, since it uses less digits than its factorization.

22444430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 22444430 is about 4737.5552767224. Note that the first 3 decimals coincide. The cubic root of 22444430 is about 282.0782020763.

Adding to 22444430 its reverse (3444422), we get a palindrome (25888852).

The spelling of 22444430 in words is "twenty-two million, four hundred forty-four thousand, four hundred thirty".