22406440440 has 64 divisors (see below), whose sum is σ = 67290199200. Its totient is φ = 5968750592.

The previous prime is 22406440439. The next prime is 22406440513. The reversal of 22406440440 is 4404460422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22406440398 and 22406440407.

It is a congruent number.

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, 16396 + ... + 212324.

Almost surely, 2^22406440440 is an apocalyptic number.

22406440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22406440440 is an abundant number, since it is smaller than the sum of its proper divisors (44883758760).

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

22406440440 is a wasteful number, since it uses less digits than its factorization.

22406440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196896 (or 196892 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The spelling of 22406440440 in words is "twenty-two billion, four hundred six million, four hundred forty thousand, four hundred forty".