74534112 has 144 divisors (see below), whose sum is σ = 228206160. Its totient is φ = 23003136.

The previous prime is 74534081. The next prime is 74534113. The reversal of 74534112 is 21143547.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74534113) 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 23 ways as a sum of consecutive naturals, for example, 289888 + ... + 290144.

It is an arithmetic number, because the mean of its divisors is an integer number (1584765).

Almost surely, 2^74534112 is an apocalyptic number.

74534112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74534112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114103080).

74534112 is an abundant number, since it is smaller than the sum of its proper divisors (153672048).

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

74534112 is a wasteful number, since it uses less digits than its factorization.

74534112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 334 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 74534112 is about 8633.3140797726. The cubic root of 74534112 is about 420.8413068406.

Adding to 74534112 its reverse (21143547), we get a palindrome (95677659).

The spelling of 74534112 in words is "seventy-four million, five hundred thirty-four thousand, one hundred twelve".