74072243 has 4 divisors (see below), whose sum is σ = 84654000. Its totient is φ = 63490488.

The previous prime is 74072233. The next prime is 74072249. The reversal of 74072243 is 34227047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34227047 = 29 ⋅1180243.

It is a cyclic number.

It is not a de Polignac number, because 74072243 - 2⁴ = 74072227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74072249) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5290868 + ... + 5290881.

It is an arithmetic number, because the mean of its divisors is an integer number (21163500).

Almost surely, 2^74072243 is an apocalyptic number.

74072243 is a deficient number, since it is larger than the sum of its proper divisors (10581757).

74072243 is a wasteful number, since it uses less digits than its factorization.

74072243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581756.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 74072243 is about 8606.5232817904. The cubic root of 74072243 is about 419.9702227566.

The spelling of 74072243 in words is "seventy-four million, seventy-two thousand, two hundred forty-three".