74243816 has 16 divisors (see below), whose sum is σ = 145260000. Its totient is φ = 35507824.

The previous prime is 74243809. The next prime is 74243821. The reversal of 74243816 is 61834247.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201566 + ... + 201933.

It is an arithmetic number, because the mean of its divisors is an integer number (9078750).

Almost surely, 2^74243816 is an apocalyptic number.

It is an amenable number.

74243816 is a deficient number, since it is larger than the sum of its proper divisors (71016184).

74243816 is a wasteful number, since it uses less digits than its factorization.

74243816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403528 (or 403524 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 74243816 is about 8616.4851302605. The cubic root of 74243816 is about 420.2942307146.

The spelling of 74243816 in words is "seventy-four million, two hundred forty-three thousand, eight hundred sixteen".