804450645 has 24 divisors (see below), whose sum is σ = 1455008256. Its totient is φ = 410385888.

The previous prime is 804450631. The next prime is 804450653. The reversal of 804450645 is 546054408.

804450645 is a `hidden beast` number, since 8 + 0 + 4 + 4 + 5 + 0 + 645 = 666.

It is not a de Polignac number, because 804450645 - 2⁸ = 804450389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387589 + ... + 389658.

It is an arithmetic number, because the mean of its divisors is an integer number (60625344).

Almost surely, 2^804450645 is an apocalyptic number.

It is an amenable number.

804450645 is a deficient number, since it is larger than the sum of its proper divisors (650557611).

804450645 is a wasteful number, since it uses less digits than its factorization.

804450645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777281 (or 777278 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 804450645 is about 28362.8391561917. The cubic root of 804450645 is about 930.0360894771.

The spelling of 804450645 in words is "eight hundred four million, four hundred fifty thousand, six hundred forty-five".