74644448 has 24 divisors (see below), whose sum is σ = 147581280. Its totient is φ = 37163520.

The previous prime is 74644447. The next prime is 74644457. The reversal of 74644448 is 84444647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74644441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2873 + ... + 12551.

It is an arithmetic number, because the mean of its divisors is an integer number (6149220).

Almost surely, 2^74644448 is an apocalyptic number.

It is an amenable number.

74644448 is a deficient number, since it is larger than the sum of its proper divisors (72936832).

74644448 is a wasteful number, since it uses less digits than its factorization.

74644448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9930 (or 9922 counting only the distinct ones).

The product of its digits is 344064, while the sum is 41.

The square root of 74644448 is about 8639.7018467074. The cubic root of 74644448 is about 421.0488675190.

The spelling of 74644448 in words is "seventy-four million, six hundred forty-four thousand, four hundred forty-eight".