42224012 has 6 divisors (see below), whose sum is σ = 73892028. Its totient is φ = 21112004.

The previous prime is 42223997. The next prime is 42224033. The reversal of 42224012 is 21042224.

It is a happy number.

It is a super-2 number, since 2×42224012² = 3565734378752288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5277998 + ... + 5278005.

It is an arithmetic number, because the mean of its divisors is an integer number (12315338).

Almost surely, 2^42224012 is an apocalyptic number.

It is an amenable number.

42224012 is a deficient number, since it is larger than the sum of its proper divisors (31668016).

42224012 is a wasteful number, since it uses less digits than its factorization.

42224012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556007 (or 10556005 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42224012 is about 6498.0006155740. Note that the first 3 decimals coincide. The cubic root of 42224012 is about 348.2195624164.

Adding to 42224012 its reverse (21042224), we get a palindrome (63266236).

The spelling of 42224012 in words is "forty-two million, two hundred twenty-four thousand, twelve".