74449660 has 24 divisors (see below), whose sum is σ = 156751056. Its totient is φ = 29702400.

The previous prime is 74449633. The next prime is 74449691. The reversal of 74449660 is 6694447.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3379 + ... + 12661.

It is an arithmetic number, because the mean of its divisors is an integer number (6531294).

Almost surely, 2^74449660 is an apocalyptic number.

It is an amenable number.

74449660 is an abundant number, since it is smaller than the sum of its proper divisors (82301396).

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

74449660 is a wasteful number, since it uses less digits than its factorization.

74449660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693 (or 9691 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 74449660 is about 8628.4216401379. The cubic root of 74449660 is about 420.6822999066.

The spelling of 74449660 in words is "seventy-four million, four hundred forty-nine thousand, six hundred sixty".