806742045 has 32 divisors (see below), whose sum is σ = 1448432640. Its totient is φ = 425995200.

The previous prime is 806742037. The next prime is 806742061. The reversal of 806742045 is 540247608.

It is not a de Polignac number, because 806742045 - 2³ = 806742037 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15949 + ... + 43218.

It is an arithmetic number, because the mean of its divisors is an integer number (45263520).

Almost surely, 2^806742045 is an apocalyptic number.

It is an amenable number.

806742045 is a deficient number, since it is larger than the sum of its proper divisors (641690595).

806742045 is a wasteful number, since it uses less digits than its factorization.

806742045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59282 (or 59276 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 806742045 is about 28403.2048367785. The cubic root of 806742045 is about 930.9182917220.

The spelling of 806742045 in words is "eight hundred six million, seven hundred forty-two thousand, forty-five".