74331345 has 16 divisors (see below), whose sum is σ = 129742272. Its totient is φ = 36039360.

The previous prime is 74331343. The next prime is 74331347. The reversal of 74331345 is 54313347.

It is an interprime number because it is at equal distance from previous prime (74331343) and next prime (74331347).

It is not a de Polignac number, because 74331345 - 2¹ = 74331343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74331343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225082 + ... + 225411.

It is an arithmetic number, because the mean of its divisors is an integer number (8108892).

Almost surely, 2^74331345 is an apocalyptic number.

It is an amenable number.

74331345 is a deficient number, since it is larger than the sum of its proper divisors (55410927).

74331345 is a wasteful number, since it uses less digits than its factorization.

74331345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450512.

The product of its digits is 15120, while the sum is 30.

The square root of 74331345 is about 8621.5627933687. The cubic root of 74331345 is about 420.4593330681.

It can be divided in two parts, 7433 and 1345, that added together give a palindrome (8778).

The spelling of 74331345 in words is "seventy-four million, three hundred thirty-one thousand, three hundred forty-five".