74391448 has 24 divisors (see below), whose sum is σ = 142206300. Its totient is φ = 36473184.

The previous prime is 74391433. The next prime is 74391461. The reversal of 74391448 is 84419347.

It is a self number, because there is not a number n which added to its sum of digits gives 74391448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187186 + ... + 187582.

Almost surely, 2^74391448 is an apocalyptic number.

It is an amenable number.

74391448 is a deficient number, since it is larger than the sum of its proper divisors (67814852).

74391448 is an equidigital number, since it uses as much as digits as its factorization.

74391448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 458 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 74391448 is about 8625.0477100130. The cubic root of 74391448 is about 420.5726278437.

The spelling of 74391448 in words is "seventy-four million, three hundred ninety-one thousand, four hundred forty-eight".