74072222 has 32 divisors (see below), whose sum is σ = 136416000. Its totient is φ = 30069144.

The previous prime is 74072191. The next prime is 74072227. The reversal of 74072222 is 22227047.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74072191 and 74072200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74072227) 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 15 ways as a sum of consecutive naturals, for example, 10193 + ... + 15875.

It is an arithmetic number, because the mean of its divisors is an integer number (4263000).

Almost surely, 2^74072222 is an apocalyptic number.

74072222 is a deficient number, since it is larger than the sum of its proper divisors (62343778).

74072222 is a wasteful number, since it uses less digits than its factorization.

74072222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5725 (or 5711 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 74072222 is about 8606.5220617855. The cubic root of 74072222 is about 419.9701830685.

Adding to 74072222 its reverse (22227047), we get a palindrome (96299269).

The spelling of 74072222 in words is "seventy-four million, seventy-two thousand, two hundred twenty-two".