223442142 has 64 divisors (see below), whose sum is σ = 563963904. Its totient is φ = 57327840.

The previous prime is 223442111. The next prime is 223442143. The reversal of 223442142 is 241244322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223442143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35433 + ... + 41259.

It is an arithmetic number, because the mean of its divisors is an integer number (8811936).

Almost surely, 2^223442142 is an apocalyptic number.

223442142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 223442142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281981952).

223442142 is an abundant number, since it is smaller than the sum of its proper divisors (340521762).

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

223442142 is a wasteful number, since it uses less digits than its factorization.

223442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933.

The product of its digits is 3072, while the sum is 24.

The square root of 223442142 is about 14947.9812014867. The cubic root of 223442142 is about 606.8132129303.

Adding to 223442142 its reverse (241244322), we get a palindrome (464686464).

The spelling of 223442142 in words is "two hundred twenty-three million, four hundred forty-two thousand, one hundred forty-two".