799045840 has 20 divisors (see below), whose sum is σ = 1857781764. Its totient is φ = 319618304.

The previous prime is 799045813. The next prime is 799045847. The reversal of 799045840 is 48540997.

It can be written as a sum of positive squares in 2 ways, for example, as 111767184 + 687278656 = 10572^2 + 26216^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799045847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4993957 + ... + 4994116.

Almost surely, 2^799045840 is an apocalyptic number.

It is an amenable number.

799045840 is an abundant number, since it is smaller than the sum of its proper divisors (1058735924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

799045840 is a wasteful number, since it uses less digits than its factorization.

799045840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9988086 (or 9988080 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 799045840 is about 28267.3988898873. The cubic root of 799045840 is about 927.9485516959.

The spelling of 799045840 in words is "seven hundred ninety-nine million, forty-five thousand, eight hundred forty".