74448660 has 96 divisors (see below), whose sum is σ = 244927872. Its totient is φ = 16657920.

The previous prime is 74448659. The next prime is 74448691. The reversal of 74448660 is 6684447.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4242 + ... + 12918.

It is an arithmetic number, because the mean of its divisors is an integer number (2551332).

Almost surely, 2^74448660 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 74448660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122463936).

74448660 is an abundant number, since it is smaller than the sum of its proper divisors (170479212).

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

74448660 is a wasteful number, since it uses less digits than its factorization.

74448660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713 (or 8711 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 74448660 is about 8628.3636919175. The cubic root of 74448660 is about 420.6804163781.

The spelling of 74448660 in words is "seventy-four million, four hundred forty-eight thousand, six hundred sixty".