799165440 has 440 divisors, whose sum is σ = 2996021952. Its totient is φ = 203489280.

The previous prime is 799165397. The next prime is 799165447. The reversal of 799165440 is 44561997.

799165440 is a `hidden beast` number, since 7 + 99 + 16 + 544 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (799165447) 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 39 ways as a sum of consecutive naturals, for example, 17003497 + ... + 17003543.

Almost surely, 2^799165440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799165440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498010976).

799165440 is an abundant number, since it is smaller than the sum of its proper divisors (2196856512).

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

799165440 is a wasteful number, since it uses less digits than its factorization.

799165440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 799165440 is about 28269.5143219688. The cubic root of 799165440 is about 927.9948473753.

The spelling of 799165440 in words is "seven hundred ninety-nine million, one hundred sixty-five thousand, four hundred forty".