223426140 has 192 divisors, whose sum is σ = 756725760. Its totient is φ = 48153600.

The previous prime is 223426081. The next prime is 223426169. The reversal of 223426140 is 41624322.

223426140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 223426140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 975546 + ... + 975774.

It is an arithmetic number, because the mean of its divisors is an integer number (3941280).

Almost surely, 2^223426140 is an apocalyptic number.

223426140 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 223426140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378362880).

223426140 is an abundant number, since it is smaller than the sum of its proper divisors (533299620).

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

223426140 is a wasteful number, since it uses less digits than its factorization.

223426140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 223426140 is about 14947.4459356774. The cubic root of 223426140 is about 606.7987267689.

It can be divided in two parts, 22342 and 6140, that added together give a palindrome (28482).

The spelling of 223426140 in words is "two hundred twenty-three million, four hundred twenty-six thousand, one hundred forty".