74239112 has 8 divisors (see below), whose sum is σ = 139198350. Its totient is φ = 37119552.

The previous prime is 74239111. The next prime is 74239117. The reversal of 74239112 is 21193247.

It can be written as a sum of positive squares in only one way, i.e., 51638596 + 22600516 = 7186^2 + 4754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×74239112² = 11022891501097088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74239111) 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 as a sum of consecutive naturals, namely, 4639937 + ... + 4639952.

Almost surely, 2^74239112 is an apocalyptic number.

It is an amenable number.

74239112 is a deficient number, since it is larger than the sum of its proper divisors (64959238).

74239112 is a wasteful number, since it uses less digits than its factorization.

74239112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9279895 (or 9279891 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 74239112 is about 8616.2121608048. The cubic root of 74239112 is about 420.2853540794.

The spelling of 74239112 in words is "seventy-four million, two hundred thirty-nine thousand, one hundred twelve".