74449493 has 4 divisors (see below), whose sum is σ = 74942688. Its totient is φ = 73956300.

The previous prime is 74449447. The next prime is 74449517. The reversal of 74449493 is 39494447.

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: 39494447 = 263 ⋅150169.

It is a cyclic number.

It is not a de Polignac number, because 74449493 - 2¹⁴ = 74433109 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 (74449433) 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, 246371 + ... + 246672.

It is an arithmetic number, because the mean of its divisors is an integer number (18735672).

Almost surely, 2^74449493 is an apocalyptic number.

It is an amenable number.

74449493 is a deficient number, since it is larger than the sum of its proper divisors (493195).

74449493 is a wasteful number, since it uses less digits than its factorization.

74449493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493194.

The product of its digits is 435456, while the sum is 44.

The square root of 74449493 is about 8628.4119628122. The cubic root of 74449493 is about 420.6819853585.

The spelling of 74449493 in words is "seventy-four million, four hundred forty-nine thousand, four hundred ninety-three".