22344342440 has 64 divisors (see below), whose sum is σ = 59310351360. Its totient is φ = 7413788160.

The previous prime is 22344342421. The next prime is 22344342457. The reversal of 22344342440 is 4424344322.

It is a junction number, because it is equal to n+sod(n) for n = 22344342397 and 22344342406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1278437 + ... + 1295796.

It is an arithmetic number, because the mean of its divisors is an integer number (926724240).

Almost surely, 2^22344342440 is an apocalyptic number.

22344342440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22344342440 is an abundant number, since it is smaller than the sum of its proper divisors (36966008920).

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

22344342440 is a wasteful number, since it uses less digits than its factorization.

22344342440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574282 (or 2574278 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 22344342440 its reverse (4424344322), we get a palindrome (26768686762).

The spelling of 22344342440 in words is "twenty-two billion, three hundred forty-four million, three hundred forty-two thousand, four hundred forty".