74328413 has 4 divisors (see below), whose sum is σ = 74490108. Its totient is φ = 74166720.

The previous prime is 74328389. The next prime is 74328431. The reversal of 74328413 is 31482347.

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 43270084 + 31058329 = 6578^2 + 5573^2 .

It is a cyclic number.

It is not a de Polignac number, because 74328413 - 2¹⁰ = 74327389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74328413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74328713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80156 + ... + 81077.

It is an arithmetic number, because the mean of its divisors is an integer number (18622527).

Almost surely, 2^74328413 is an apocalyptic number.

It is an amenable number.

74328413 is a deficient number, since it is larger than the sum of its proper divisors (161695).

74328413 is a wasteful number, since it uses less digits than its factorization.

74328413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161694.

The product of its digits is 16128, while the sum is 32.

The square root of 74328413 is about 8621.3927529141. The cubic root of 74328413 is about 420.4538046558.

The spelling of 74328413 in words is "seventy-four million, three hundred twenty-eight thousand, four hundred thirteen".