223438682840 has 64 divisors (see below), whose sum is σ = 519309653760. Its totient is φ = 86457162240.

The previous prime is 223438682839. The next prime is 223438682849. The reversal of 223438682840 is 48286834322.

223438682840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×223438682840² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223438682849) 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, 180296 + ... + 692375.

It is an arithmetic number, because the mean of its divisors is an integer number (8114213340).

Almost surely, 2^223438682840 is an apocalyptic number.

223438682840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223438682840 is an abundant number, since it is smaller than the sum of its proper divisors (295870970920).

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

223438682840 is a wasteful number, since it uses less digits than its factorization.

223438682840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872892 (or 872888 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 50.

The spelling of 223438682840 in words is "two hundred twenty-three billion, four hundred thirty-eight million, six hundred eighty-two thousand, eight hundred forty".