223434266440 has 64 divisors (see below), whose sum is σ = 626776652160. Its totient is φ = 69641848320.

The previous prime is 223434266437. The next prime is 223434266443. The reversal of 223434266440 is 44662434322.

It is an interprime number because it is at equal distance from previous prime (223434266437) and next prime (223434266443).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 223434266393 and 223434266402.

It is not an unprimeable number, because it can be changed into a prime (223434266443) 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, 36268717 + ... + 36274876.

It is an arithmetic number, because the mean of its divisors is an integer number (9793385190).

Almost surely, 2^223434266440 is an apocalyptic number.

223434266440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223434266440 is an abundant number, since it is smaller than the sum of its proper divisors (403342385720).

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

223434266440 is a wasteful number, since it uses less digits than its factorization.

223434266440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72543622 (or 72543618 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 40.

The spelling of 223434266440 in words is "two hundred twenty-three billion, four hundred thirty-four million, two hundred sixty-six thousand, four hundred forty".