74039845 has 16 divisors (see below), whose sum is σ = 102627648. Its totient is φ = 50679040.

The previous prime is 74039839. The next prime is 74039863. The reversal of 74039845 is 54893047.

It is not a de Polignac number, because 74039845 - 2⁷ = 74039717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74039798 and 74039807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38659 + ... + 40528.

It is an arithmetic number, because the mean of its divisors is an integer number (6414228).

Almost surely, 2^74039845 is an apocalyptic number.

It is an amenable number.

74039845 is a deficient number, since it is larger than the sum of its proper divisors (28587803).

74039845 is a wasteful number, since it uses less digits than its factorization.

74039845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79220.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 74039845 is about 8604.6408989568. The cubic root of 74039845 is about 419.9089844352.

The spelling of 74039845 in words is "seventy-four million, thirty-nine thousand, eight hundred forty-five".