45638289 has 16 divisors (see below), whose sum is σ = 69263040. Its totient is φ = 29682720.

The previous prime is 45638273. The next prime is 45638291. The reversal of 45638289 is 98283654.

45638289 is a `hidden beast` number, since 4 + 5 + 638 + 2 + 8 + 9 = 666.

It is not a de Polignac number, because 45638289 - 2⁴ = 45638273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45638249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19507 + ... + 21720.

It is an arithmetic number, because the mean of its divisors is an integer number (4328940).

Almost surely, 2^45638289 is an apocalyptic number.

It is an amenable number.

45638289 is a deficient number, since it is larger than the sum of its proper divisors (23624751).

45638289 is a wasteful number, since it uses less digits than its factorization.

45638289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41277 (or 41271 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 45638289 is about 6755.6116673474. The cubic root of 45638289 is about 357.3631640889.

The spelling of 45638289 in words is "forty-five million, six hundred thirty-eight thousand, two hundred eighty-nine".