223444340 has 48 divisors (see below), whose sum is σ = 548752512. Its totient is φ = 74825856.

The previous prime is 223444339. The next prime is 223444357. The reversal of 223444340 is 43444322.

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, 12539 + ... + 24578.

It is an arithmetic number, because the mean of its divisors is an integer number (11432344).

Almost surely, 2^223444340 is an apocalyptic number.

223444340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223444340 is an abundant number, since it is smaller than the sum of its proper divisors (325308172).

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

223444340 is a wasteful number, since it uses less digits than its factorization.

223444340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37176 (or 37174 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 223444340 is about 14948.0547229397. The cubic root of 223444340 is about 606.8152026640.

Adding to 223444340 its reverse (43444322), we get a palindrome (266888662).

The spelling of 223444340 in words is "two hundred twenty-three million, four hundred forty-four thousand, three hundred forty".