22441040 has 20 divisors (see below), whose sum is σ = 52175604. Its totient is φ = 8976384.

The previous prime is 22440991. The next prime is 22441057. The reversal of 22441040 is 4014422.

It can be written as a sum of positive squares in 2 ways, for example, as 2334784 + 20106256 = 1528^2 + 4484^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 140177 + ... + 140336.

Almost surely, 2^22441040 is an apocalyptic number.

22441040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22441040 is an abundant number, since it is smaller than the sum of its proper divisors (29734564).

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

22441040 is a wasteful number, since it uses less digits than its factorization.

22441040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280526 (or 280520 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22441040 is about 4737.1974837450. The cubic root of 22441040 is about 282.0639996921.

Adding to 22441040 its reverse (4014422), we get a palindrome (26455462).

The spelling of 22441040 in words is "twenty-two million, four hundred forty-one thousand, forty".