223242232111440 has 160 divisors (see below), whose sum is σ = 728684820472320. Its totient is φ = 56381766492672.

The previous prime is 223242232111429. The next prime is 223242232111489. The reversal of 223242232111440 is 44111232242322.

It is a super-3 number, since 3×223242232111440³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8749147 + ... + 22869893.

It is an arithmetic number, because the mean of its divisors is an integer number (4554280127952).

Almost surely, 2^{223242232111440} is an apocalyptic number.

223242232111440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223242232111440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364342410236160).

223242232111440 is an abundant number, since it is smaller than the sum of its proper divisors (505442588360880).

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

223242232111440 is a wasteful number, since it uses less digits than its factorization.

223242232111440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14124249 (or 14124243 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 223242232111440 its reverse (44111232242322), we get a palindrome (267353464353762).

The spelling of 223242232111440 in words is "two hundred twenty-three trillion, two hundred forty-two billion, two hundred thirty-two million, one hundred eleven thousand, four hundred forty".