74718243 has 6 divisors (see below), whose sum is σ = 107926364. Its totient is φ = 49812156.

The previous prime is 74718233. The next prime is 74718251. The reversal of 74718243 is 34281747.

It is a happy number.

It is not a de Polignac number, because 74718243 - 2⁵ = 74718211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74718198 and 74718207.

It is not an unprimeable number, because it can be changed into a prime (74718233) 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 5 ways as a sum of consecutive naturals, for example, 4151005 + ... + 4151022.

Almost surely, 2^74718243 is an apocalyptic number.

74718243 is a deficient number, since it is larger than the sum of its proper divisors (33208121).

74718243 is a wasteful number, since it uses less digits than its factorization.

74718243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8302033 (or 8302030 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 74718243 is about 8643.9714830626. The cubic root of 74718243 is about 421.1875742743.

The spelling of 74718243 in words is "seventy-four million, seven hundred eighteen thousand, two hundred forty-three".