22408868402 has 18 divisors (see below), whose sum is σ = 33885720477. Its totient is φ = 11114355000.

The previous prime is 22408868389. The next prime is 22408868407. The reversal of 22408868402 is 20486880422.

It can be written as a sum of positive squares in 2 ways, for example, as 18923028721 + 3485839681 = 137561^2 + 59041^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105851.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22408868407) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 31966652 + ... + 31967352.

Almost surely, 2^22408868402 is an apocalyptic number.

22408868402 is a deficient number, since it is larger than the sum of its proper divisors (11476852075).

22408868402 is an frugal number, since it uses more digits than its factorization.

22408868402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 22408868402 in words is "twenty-two billion, four hundred eight million, eight hundred sixty-eight thousand, four hundred two".