42223424 has 14 divisors (see below), whose sum is σ = 83787234. Its totient is φ = 21111680.

The previous prime is 42223417. The next prime is 42223429. The reversal of 42223424 is 42432224.

It can be written as a sum of positive squares in only one way, i.e., 38837824 + 3385600 = 6232^2 + 1840^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42223424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329807 + ... + 329934.

Almost surely, 2^42223424 is an apocalyptic number.

It is an amenable number.

42223424 is a deficient number, since it is larger than the sum of its proper divisors (41563810).

42223424 is an equidigital number, since it uses as much as digits as its factorization.

42223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659753 (or 659743 counting only the distinct ones).

The product of its digits is 3072, while the sum is 23.

The square root of 42223424 is about 6497.9553707301. The cubic root of 42223424 is about 348.2179460055.

Adding to 42223424 its reverse (42432224), we get a palindrome (84655648).

The spelling of 42223424 in words is "forty-two million, two hundred twenty-three thousand, four hundred twenty-four".