74440345 has 8 divisors (see below), whose sum is σ = 102089664. Its totient is φ = 51044784.

The previous prime is 74440319. The next prime is 74440349. The reversal of 74440345 is 54304447.

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

It is not a de Polignac number, because 74440345 - 2¹¹ = 74438297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74440349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063399 + ... + 1063468.

It is an arithmetic number, because the mean of its divisors is an integer number (12761208).

Almost surely, 2^74440345 is an apocalyptic number.

It is an amenable number.

74440345 is a deficient number, since it is larger than the sum of its proper divisors (27649319).

74440345 is a wasteful number, since it uses less digits than its factorization.

74440345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126879.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 74440345 is about 8627.8818373921. The cubic root of 74440345 is about 420.6647541848.

The spelling of 74440345 in words is "seventy-four million, four hundred forty thousand, three hundred forty-five".