223700340 has 96 divisors (see below), whose sum is σ = 652345344. Its totient is φ = 57214080.

The previous prime is 223700311. The next prime is 223700353. The reversal of 223700340 is 43007322.

It is a happy number.

It is a super-2 number, since 2×223700340² = 100083684232231200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235747 + ... + 236693.

It is an arithmetic number, because the mean of its divisors is an integer number (6795264).

Almost surely, 2^223700340 is an apocalyptic number.

223700340 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 223700340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326172672).

223700340 is an abundant number, since it is smaller than the sum of its proper divisors (428645004).

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

223700340 is a wasteful number, since it uses less digits than its factorization.

223700340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 223700340 is about 14956.6152588077. The cubic root of 223700340 is about 607.0468567805.

Adding to 223700340 its reverse (43007322), we get a palindrome (266707662).

The spelling of 223700340 in words is "two hundred twenty-three million, seven hundred thousand, three hundred forty".