45359809 has 8 divisors (see below), whose sum is σ = 49543200. Its totient is φ = 41186400.

The previous prime is 45359779. The next prime is 45359813. The reversal of 45359809 is 90895354.

It is a happy number.

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 45359809 - 2⁷ = 45359681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45359869) 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, 9574 + ... + 13504.

It is an arithmetic number, because the mean of its divisors is an integer number (6192900).

Almost surely, 2^45359809 is an apocalyptic number.

It is an amenable number.

45359809 is a deficient number, since it is larger than the sum of its proper divisors (4183391).

45359809 is a wasteful number, since it uses less digits than its factorization.

45359809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 45359809 is about 6734.9691164845. The cubic root of 45359809 is about 356.6348165967.

The spelling of 45359809 in words is "forty-five million, three hundred fifty-nine thousand, eight hundred nine".