45073809 has 12 divisors (see below), whose sum is σ = 71025552. Its totient is φ = 27317400.

The previous prime is 45073793. The next prime is 45073823. The reversal of 45073809 is 90837054.

It is not a de Polignac number, because 45073809 - 2⁴ = 45073793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45073829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227547 + ... + 227744.

It is an arithmetic number, because the mean of its divisors is an integer number (5918796).

Almost surely, 2^45073809 is an apocalyptic number.

It is an amenable number.

45073809 is a deficient number, since it is larger than the sum of its proper divisors (25951743).

45073809 is a wasteful number, since it uses less digits than its factorization.

45073809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455308 (or 455305 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 45073809 is about 6713.7030765443. The cubic root of 45073809 is about 355.8836914373.

The spelling of 45073809 in words is "forty-five million, seventy-three thousand, eight hundred nine".