223112442 has 32 divisors (see below), whose sum is σ = 523757952. Its totient is φ = 62023104.

The previous prime is 223112429. The next prime is 223112467. The reversal of 223112442 is 244211322.

It is a super-3 number, since 3×223112442³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 70233 + ... + 73340.

It is an arithmetic number, because the mean of its divisors is an integer number (16367436).

Almost surely, 2^223112442 is an apocalyptic number.

223112442 is an abundant number, since it is smaller than the sum of its proper divisors (300645510).

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

223112442 is a wasteful number, since it uses less digits than its factorization.

223112442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143622.

The product of its digits is 768, while the sum is 21.

The square root of 223112442 is about 14936.9488852309. The cubic root of 223112442 is about 606.5146049807.

Adding to 223112442 its reverse (244211322), we get a palindrome (467323764).

It can be divided in two parts, 22311 and 2442, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 223112442 in words is "two hundred twenty-three million, one hundred twelve thousand, four hundred forty-two".