74267243 has 4 divisors (see below), whose sum is σ = 74302488. Its totient is φ = 74232000.

The previous prime is 74267239. The next prime is 74267261. The reversal of 74267243 is 34276247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34276247 = 19 ⋅1804013.

It is a cyclic number.

It is not a de Polignac number, because 74267243 - 2² = 74267239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74267213) 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, 14246 + ... + 18747.

It is an arithmetic number, because the mean of its divisors is an integer number (18575622).

Almost surely, 2^74267243 is an apocalyptic number.

74267243 is a deficient number, since it is larger than the sum of its proper divisors (35245).

74267243 is a wasteful number, since it uses less digits than its factorization.

74267243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35244.

The product of its digits is 56448, while the sum is 35.

The square root of 74267243 is about 8617.8444520657. The cubic root of 74267243 is about 420.3384328135.

The spelling of 74267243 in words is "seventy-four million, two hundred sixty-seven thousand, two hundred forty-three".