223243140 has 48 divisors (see below), whose sum is σ = 630024192. Its totient is φ = 59060736.

The previous prime is 223243117. The next prime is 223243147. The reversal of 223243140 is 41342322.

223243140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223243140³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223243147) 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, 7029 + ... + 22268.

It is an arithmetic number, because the mean of its divisors is an integer number (13125504).

Almost surely, 2^223243140 is an apocalyptic number.

223243140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223243140 is an abundant number, since it is smaller than the sum of its proper divisors (406781052).

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

223243140 is a wasteful number, since it uses less digits than its factorization.

223243140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29436 (or 29434 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 223243140 is about 14941.3232345733. The cubic root of 223243140 is about 606.6330127986.

Adding to 223243140 its reverse (41342322), we get a palindrome (264585462).

The spelling of 223243140 in words is "two hundred twenty-three million, two hundred forty-three thousand, one hundred forty".