798771840 has 256 divisors, whose sum is σ = 2662934400. Its totient is φ = 203489280.

The previous prime is 798771833. The next prime is 798771847. The reversal of 798771840 is 48177897.

It is an interprime number because it is at equal distance from previous prime (798771833) and next prime (798771847).

It is not an unprimeable number, because it can be changed into a prime (798771847) by changing a digit.

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, 5746491 + ... + 5746629.

Almost surely, 2^798771840 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 798771840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331467200).

798771840 is an abundant number, since it is smaller than the sum of its proper divisors (1864162560).

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

798771840 is a wasteful number, since it uses less digits than its factorization.

798771840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 51.

The square root of 798771840 is about 28262.5519017657. The cubic root of 798771840 is about 927.8424722703.

The spelling of 798771840 in words is "seven hundred ninety-eight million, seven hundred seventy-one thousand, eight hundred forty".