223204440440 has 64 divisors (see below), whose sum is σ = 523166688000. Its totient is φ = 85608990720.

The previous prime is 223204440421. The next prime is 223204440449. The reversal of 223204440440 is 44044402322.

It is a super-3 number, since 3×223204440440³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223204440449) 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, 690545 + ... + 960864.

It is an arithmetic number, because the mean of its divisors is an integer number (8174479500).

Almost surely, 2^223204440440 is an apocalyptic number.

223204440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223204440440 is an abundant number, since it is smaller than the sum of its proper divisors (299962247560).

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

223204440440 is a wasteful number, since it uses less digits than its factorization.

223204440440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651560 (or 1651556 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 223204440440 its reverse (44044402322), we get a palindrome (267248842762).

The spelling of 223204440440 in words is "two hundred twenty-three billion, two hundred four million, four hundred forty thousand, four hundred forty".