22444370 has 16 divisors (see below), whose sum is σ = 43507800. Its totient is φ = 8287104.

The previous prime is 22444351. The next prime is 22444379. The reversal of 22444370 is 7344422.

It can be written as a sum of positive squares in 4 ways, for example, as 6436369 + 16008001 = 2537^2 + 4001^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (22444379) 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 7 ways as a sum of consecutive naturals, for example, 86195 + ... + 86454.

Almost surely, 2^22444370 is an apocalyptic number.

22444370 is a deficient number, since it is larger than the sum of its proper divisors (21063430).

22444370 is a wasteful number, since it uses less digits than its factorization.

22444370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172669.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 22444370 is about 4737.5489443382. The cubic root of 22444370 is about 282.0779507191.

Adding to 22444370 its reverse (7344422), we get a palindrome (29788792).

The spelling of 22444370 in words is "twenty-two million, four hundred forty-four thousand, three hundred seventy".