74523612 has 12 divisors (see below), whose sum is σ = 173888456. Its totient is φ = 24841200.

The previous prime is 74523593. The next prime is 74523619. The reversal of 74523612 is 21632547.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 74523612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74523619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3105139 + ... + 3105162.

Almost surely, 2^74523612 is an apocalyptic number.

It is an amenable number.

74523612 is an abundant number, since it is smaller than the sum of its proper divisors (99364844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74523612 is a wasteful number, since it uses less digits than its factorization.

74523612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210308 (or 6210306 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 74523612 is about 8632.7059488900. The cubic root of 74523612 is about 420.8215438931.

The spelling of 74523612 in words is "seventy-four million, five hundred twenty-three thousand, six hundred twelve".