74449291 has 8 divisors (see below), whose sum is σ = 87384800. Its totient is φ = 62088768.

The previous prime is 74449213. The next prime is 74449369. The reversal of 74449291 is 19294447.

It is an interprime number because it is at equal distance from previous prime (74449213) and next prime (74449369).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74449291 - 2⁹ = 74448779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74449591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143466 + ... + 143983.

It is an arithmetic number, because the mean of its divisors is an integer number (10923100).

Almost surely, 2^74449291 is an apocalyptic number.

74449291 is a deficient number, since it is larger than the sum of its proper divisors (12935509).

74449291 is a wasteful number, since it uses less digits than its factorization.

74449291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287493.

The product of its digits is 72576, while the sum is 40.

The square root of 74449291 is about 8628.4002572899. The cubic root of 74449291 is about 420.6816048865.

The spelling of 74449291 in words is "seventy-four million, four hundred forty-nine thousand, two hundred ninety-one".