74147860 has 48 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 28227584.

The previous prime is 74147851. The next prime is 74147869. The reversal of 74147860 is 6874147.

It is an interprime number because it is at equal distance from previous prime (74147851) and next prime (74147869).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74147869) 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 15 ways as a sum of consecutive naturals, for example, 164916 + ... + 165364.

It is an arithmetic number, because the mean of its divisors is an integer number (3402000).

Almost surely, 2^74147860 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 74147860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81648000).

74147860 is an abundant number, since it is smaller than the sum of its proper divisors (89148140).

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

74147860 is a wasteful number, since it uses less digits than its factorization.

74147860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 74147860 is about 8610.9151662294. The cubic root of 74147860 is about 420.1130836844.

The spelling of 74147860 in words is "seventy-four million, one hundred forty-seven thousand, eight hundred sixty".