74507845 has 8 divisors (see below), whose sum is σ = 90245664. Its totient is φ = 59048784.

The previous prime is 74507809. The next prime is 74507857. The reversal of 74507845 is 54870547.

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

It is a cyclic number.

It is not a de Polignac number, because 74507845 - 2⁷ = 74507717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74507798 and 74507807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69099 + ... + 70168.

It is an arithmetic number, because the mean of its divisors is an integer number (11280708).

Almost surely, 2^74507845 is an apocalyptic number.

It is an amenable number.

74507845 is a deficient number, since it is larger than the sum of its proper divisors (15737819).

74507845 is a wasteful number, since it uses less digits than its factorization.

74507845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139379.

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

The square root of 74507845 is about 8631.7926875012. The cubic root of 74507845 is about 420.7918639876.

The spelling of 74507845 in words is "seventy-four million, five hundred seven thousand, eight hundred forty-five".