74442317 has 4 divisors (see below), whose sum is σ = 74592000. Its totient is φ = 74292636.

The previous prime is 74442307. The next prime is 74442343. The reversal of 74442317 is 71324447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71324447 = 457 ⋅156071.

It is a cyclic number.

It is not a de Polignac number, because 74442317 - 2²⁰ = 73393741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74442307) 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, 74093 + ... + 75090.

It is an arithmetic number, because the mean of its divisors is an integer number (18648000).

Almost surely, 2^74442317 is an apocalyptic number.

It is an amenable number.

74442317 is a deficient number, since it is larger than the sum of its proper divisors (149683).

74442317 is a wasteful number, since it uses less digits than its factorization.

74442317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149682.

The product of its digits is 18816, while the sum is 32.

The square root of 74442317 is about 8627.9961172917. The cubic root of 74442317 is about 420.6684687636.

The spelling of 74442317 in words is "seventy-four million, four hundred forty-two thousand, three hundred seventeen".