74057845 has 4 divisors (see below), whose sum is σ = 88869420. Its totient is φ = 59246272.

The previous prime is 74057833. The next prime is 74057881. The reversal of 74057845 is 54875047.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42954916 + 31102929 = 6554^2 + 5577^2 .

It is a cyclic number.

It is not a de Polignac number, because 74057845 - 2⁷ = 74057717 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 74057798 and 74057807.

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 3 ways as a sum of consecutive naturals, for example, 7405780 + ... + 7405789.

It is an arithmetic number, because the mean of its divisors is an integer number (22217355).

Almost surely, 2^74057845 is an apocalyptic number.

It is an amenable number.

74057845 is a deficient number, since it is larger than the sum of its proper divisors (14811575).

74057845 is a wasteful number, since it uses less digits than its factorization.

74057845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14811574.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 74057845 is about 8605.6867825874. The cubic root of 74057845 is about 419.9430100300.

It can be divided in two parts, 740 and 57845, that added together give a palindrome (58585).

The spelling of 74057845 in words is "seventy-four million, fifty-seven thousand, eight hundred forty-five".