223432425440 has 192 divisors, whose sum is σ = 638896978944. Its totient is φ = 72180523008.

The previous prime is 223432425421. The next prime is 223432425451. The reversal of 223432425440 is 44524234322.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 223432425440.

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, 1661192 + ... + 1790648.

It is an arithmetic number, because the mean of its divisors is an integer number (3327588432).

Almost surely, 2^223432425440 is an apocalyptic number.

223432425440 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 223432425440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319448489472).

223432425440 is an abundant number, since it is smaller than the sum of its proper divisors (415464553504).

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

223432425440 is a wasteful number, since it uses less digits than its factorization.

223432425440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129569 (or 129561 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 223432425440 its reverse (44524234322), we get a palindrome (267956659762).

The spelling of 223432425440 in words is "two hundred twenty-three billion, four hundred thirty-two million, four hundred twenty-five thousand, four hundred forty".