223240003440 has 80 divisors (see below), whose sum is σ = 692098560000. Its totient is φ = 59525975296.

The previous prime is 223240003417. The next prime is 223240003451. The reversal of 223240003440 is 44300042322.

223240003440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×223240003440³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 223240003440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3888061 + ... + 3945059.

It is an arithmetic number, because the mean of its divisors is an integer number (8651232000).

Almost surely, 2^223240003440 is an apocalyptic number.

223240003440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223240003440 is an abundant number, since it is smaller than the sum of its proper divisors (468858556560).

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

223240003440 is a wasteful number, since it uses less digits than its factorization.

223240003440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73334 (or 73328 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 223240003440 its reverse (44300042322), we get a palindrome (267540045762).

The spelling of 223240003440 in words is "two hundred twenty-three billion, two hundred forty million, three thousand, four hundred forty".