22440130402 has 8 divisors (see below), whose sum is σ = 33709917276. Its totient is φ = 11203491312.

The previous prime is 22440130381. The next prime is 22440130421. The reversal of 22440130402 is 20403104422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21234026961 + 1206103441 = 145719^2 + 34729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8285253 + ... + 8287960.

Almost surely, 2^22440130402 is an apocalyptic number.

22440130402 is a deficient number, since it is larger than the sum of its proper divisors (11269786874).

22440130402 is a wasteful number, since it uses less digits than its factorization.

22440130402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16573892.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22440130402 its reverse (20403104422), we get a palindrome (42843234824).

The spelling of 22440130402 in words is "twenty-two billion, four hundred forty million, one hundred thirty thousand, four hundred two".