74722160 has 40 divisors (see below), whose sum is σ = 174765600. Its totient is φ = 29710592.

The previous prime is 74722111. The next prime is 74722169. The reversal of 74722160 is 6122747.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74722169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11141 + ... + 16539.

It is an arithmetic number, because the mean of its divisors is an integer number (4369140).

Almost surely, 2^74722160 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 74722160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87382800).

74722160 is an abundant number, since it is smaller than the sum of its proper divisors (100043440).

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

74722160 is a wasteful number, since it uses less digits than its factorization.

74722160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585 (or 5579 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 74722160 is about 8644.1980541864. The cubic root of 74722160 is about 421.1949342034.

The spelling of 74722160 in words is "seventy-four million, seven hundred twenty-two thousand, one hundred sixty".