749580009 has 8 divisors (see below), whose sum is σ = 999729792. Its totient is φ = 499575120.

The previous prime is 749579993. The next prime is 749580043. The reversal of 749580009 is 900085947.

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

It is not a de Polignac number, because 749580009 - 2⁴ = 749579993 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (749580089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23514 + ... + 45299.

It is an arithmetic number, because the mean of its divisors is an integer number (124966224).

Almost surely, 2^749580009 is an apocalyptic number.

It is an amenable number.

749580009 is a deficient number, since it is larger than the sum of its proper divisors (250149783).

749580009 is a wasteful number, since it uses less digits than its factorization.

749580009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72447.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 749580009 is about 27378.4588499791. The cubic root of 749580009 is about 908.3906704615.

The spelling of 749580009 in words is "seven hundred forty-nine million, five hundred eighty thousand, nine".