799001280 has 448 divisors, whose sum is σ = 3517148160. Its totient is φ = 165888000.

The previous prime is 799001257. The next prime is 799001311. The reversal of 799001280 is 82100997.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 664680 + ... + 665880.

Almost surely, 2^799001280 is an apocalyptic number.

799001280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799001280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1758574080).

799001280 is an abundant number, since it is smaller than the sum of its proper divisors (2718146880).

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

799001280 is a wasteful number, since it uses less digits than its factorization.

799001280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 799001280 is about 28266.6106917685. The cubic root of 799001280 is about 927.9313018904.

The spelling of 799001280 in words is "seven hundred ninety-nine million, one thousand, two hundred eighty".