223542312 has 96 divisors (see below), whose sum is σ = 653083200. Its totient is φ = 63576576.

The previous prime is 223542311. The next prime is 223542317. The reversal of 223542312 is 213245322.

223542312 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 Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (223542311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508989 + ... + 509427.

It is an arithmetic number, because the mean of its divisors is an integer number (6802950).

Almost surely, 2^223542312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223542312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326541600).

223542312 is an abundant number, since it is smaller than the sum of its proper divisors (429540888).

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

223542312 is a wasteful number, since it uses less digits than its factorization.

223542312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 884 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 223542312 is about 14951.3314457275. The cubic root of 223542312 is about 606.9038783079.

Adding to 223542312 its reverse (213245322), we get a palindrome (436787634).

The spelling of 223542312 in words is "two hundred twenty-three million, five hundred forty-two thousand, three hundred twelve".