223240344440 has 64 divisors (see below), whose sum is σ = 508089132000. Its totient is φ = 88268198400.

The previous prime is 223240344389. The next prime is 223240344449. The reversal of 223240344440 is 44443042322.

It is a super-3 number, since 3×223240344440³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223240344397 and 223240344406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223240344449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2456126 + ... + 2545394.

Almost surely, 2^223240344440 is an apocalyptic number.

223240344440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223240344440 is an abundant number, since it is smaller than the sum of its proper divisors (284848787560).

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

223240344440 is a wasteful number, since it uses less digits than its factorization.

223240344440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90000 (or 89996 counting only the distinct ones).

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

Adding to 223240344440 its reverse (44443042322), we get a palindrome (267683386762).

The spelling of 223240344440 in words is "two hundred twenty-three billion, two hundred forty million, three hundred forty-four thousand, four hundred forty".