74430565 has 16 divisors (see below), whose sum is σ = 99092160. Its totient is φ = 53211520.

The previous prime is 74430547. The next prime is 74430589. The reversal of 74430565 is 56503447.

It is a happy number.

It is not a de Polignac number, because 74430565 - 2⁹ = 74430053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74430565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8224 + ... + 14713.

It is an arithmetic number, because the mean of its divisors is an integer number (6193260).

Almost surely, 2^74430565 is an apocalyptic number.

It is an amenable number.

74430565 is a deficient number, since it is larger than the sum of its proper divisors (24661595).

74430565 is a wasteful number, since it uses less digits than its factorization.

74430565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23012.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 74430565 is about 8627.3150516253. The cubic root of 74430565 is about 420.6463310144.

The spelling of 74430565 in words is "seventy-four million, four hundred thirty thousand, five hundred sixty-five".