74045745 has 24 divisors (see below), whose sum is σ = 133101696. Its totient is φ = 39490416.

The previous prime is 74045743. The next prime is 74045759. The reversal of 74045745 is 54754047.

It is not a de Polignac number, because 74045745 - 2¹ = 74045743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74045743) 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 23 ways as a sum of consecutive naturals, for example, 29257 + ... + 31686.

It is an arithmetic number, because the mean of its divisors is an integer number (5545904).

Almost surely, 2^74045745 is an apocalyptic number.

It is an amenable number.

74045745 is a deficient number, since it is larger than the sum of its proper divisors (59055951).

74045745 is an equidigital number, since it uses as much as digits as its factorization.

74045745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60963 (or 60951 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 74045745 is about 8604.9837303739. The cubic root of 74045745 is about 419.9201378766.

The spelling of 74045745 in words is "seventy-four million, forty-five thousand, seven hundred forty-five".