74419609 has 4 divisors (see below), whose sum is σ = 81185040. Its totient is φ = 67654180.

The previous prime is 74419603. The next prime is 74419613. The reversal of 74419609 is 90691447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 74419609 - 2⁵ = 74419577 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 Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74419603) 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, 3382699 + ... + 3382720.

It is an arithmetic number, because the mean of its divisors is an integer number (20296260).

Almost surely, 2^74419609 is an apocalyptic number.

It is an amenable number.

74419609 is a deficient number, since it is larger than the sum of its proper divisors (6765431).

74419609 is a wasteful number, since it uses less digits than its factorization.

74419609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765430.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 74419609 is about 8626.6800682534. The cubic root of 74419609 is about 420.6256906259.

The spelling of 74419609 in words is "seventy-four million, four hundred nineteen thousand, six hundred nine".