74222642 has 8 divisors (see below), whose sum is σ = 119898156. Its totient is φ = 34256592.

The previous prime is 74222641. The next prime is 74222699. The reversal of 74222642 is 24622247.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73942801 + 279841 = 8599^2 + 529^2 .

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

It is not an unprimeable number, because it can be changed into a prime (74222641) 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, 1427333 + ... + 1427384.

Almost surely, 2^74222642 is an apocalyptic number.

74222642 is a deficient number, since it is larger than the sum of its proper divisors (45675514).

74222642 is a wasteful number, since it uses less digits than its factorization.

74222642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854732.

The product of its digits is 10752, while the sum is 29.

The square root of 74222642 is about 8615.2563513804. The cubic root of 74222642 is about 420.2542715788.

Adding to 74222642 its reverse (24622247), we get a palindrome (98844889).

The spelling of 74222642 in words is "seventy-four million, two hundred twenty-two thousand, six hundred forty-two".