223217340 has 48 divisors (see below), whose sum is σ = 632046240. Its totient is φ = 58854400.

The previous prime is 223217311. The next prime is 223217363. The reversal of 223217340 is 43712322.

223217340 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223217340³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223217340.

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, 15561 + ... + 26240.

It is an arithmetic number, because the mean of its divisors is an integer number (13167630).

Almost surely, 2^223217340 is an apocalyptic number.

223217340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223217340 is an abundant number, since it is smaller than the sum of its proper divisors (408828900).

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

223217340 is a wasteful number, since it uses less digits than its factorization.

223217340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41902 (or 41900 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 223217340 is about 14940.4598322809. The cubic root of 223217340 is about 606.6096425624.

Adding to 223217340 its reverse (43712322), we get a palindrome (266929662).

The spelling of 223217340 in words is "two hundred twenty-three million, two hundred seventeen thousand, three hundred forty".