42043222 has 8 divisors (see below), whose sum is σ = 67916016. Its totient is φ = 19404552.

The previous prime is 42043217. The next prime is 42043229. The reversal of 42043222 is 22234024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42043222² = 3535265032282568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42043222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808498 + ... + 808549.

It is an arithmetic number, because the mean of its divisors is an integer number (8489502).

Almost surely, 2^42043222 is an apocalyptic number.

42043222 is a deficient number, since it is larger than the sum of its proper divisors (25872794).

42043222 is a wasteful number, since it uses less digits than its factorization.

42043222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617062.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42043222 is about 6484.0744906270. The cubic root of 42043222 is about 347.7218623583.

Adding to 42043222 its reverse (22234024), we get a palindrome (64277246).

The spelling of 42043222 in words is "forty-two million, forty-three thousand, two hundred twenty-two".