22143470340440 has 32 divisors (see below), whose sum is σ = 50566432276080. Its totient is φ = 8725188312192.

The previous prime is 22143470340413. The next prime is 22143470340463. The reversal of 22143470340440 is 4404307434122.

It is a junction number, because it is equal to n+sod(n) for n = 22143470340394 and 22143470340403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4131241787 + ... + 4131247146.

Almost surely, 2^{22143470340440} is an apocalyptic number.

22143470340440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22143470340440 is an abundant number, since it is smaller than the sum of its proper divisors (28422961935640).

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

22143470340440 is a wasteful number, since it uses less digits than its factorization.

22143470340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262489011 (or 8262489007 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 38.

Adding to 22143470340440 its reverse (4404307434122), we get a palindrome (26547777774562).

The spelling of 22143470340440 in words is "twenty-two trillion, one hundred forty-three billion, four hundred seventy million, three hundred forty thousand, four hundred forty".