74081568 has 144 divisors (see below), whose sum is σ = 222209568. Its totient is φ = 21427200.

The previous prime is 74081503. The next prime is 74081569. The reversal of 74081568 is 86518047.

It is not an unprimeable number, because it can be changed into a prime (74081569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1014780 + ... + 1014852.

It is an arithmetic number, because the mean of its divisors is an integer number (1543122).

Almost surely, 2^74081568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74081568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111104784).

74081568 is an abundant number, since it is smaller than the sum of its proper divisors (148128000).

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

74081568 is a wasteful number, since it uses less digits than its factorization.

74081568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 74081568 is about 8607.0650049828. The cubic root of 74081568 is about 419.9878454532.

The spelling of 74081568 in words is "seventy-four million, eighty-one thousand, five hundred sixty-eight".