42223542 has 16 divisors (see below), whose sum is σ = 84513792. Its totient is φ = 14063400.

The previous prime is 42223523. The next prime is 42223543. The reversal of 42223542 is 24532224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9903 + ... + 13509.

It is an arithmetic number, because the mean of its divisors is an integer number (5282112).

Almost surely, 2^42223542 is an apocalyptic number.

42223542 is an abundant number, since it is smaller than the sum of its proper divisors (42290250).

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

42223542 is a wasteful number, since it uses less digits than its factorization.

42223542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563.

The product of its digits is 3840, while the sum is 24.

The square root of 42223542 is about 6497.9644505029. The cubic root of 42223542 is about 348.2182703885.

Adding to 42223542 its reverse (24532224), we get a palindrome (66755766).

The spelling of 42223542 in words is "forty-two million, two hundred twenty-three thousand, five hundred forty-two".