798640000 has 160 divisors (see below), whose sum is σ = 2031381000. Its totient is φ = 312576000.

The previous prime is 798639979. The next prime is 798640001. The reversal of 798640000 is 46897.

It is a tau number, because it is divible by the number of its divisors (160).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798640001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5359926 + ... + 5360074.

Almost surely, 2^798640000 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 798640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015690500).

798640000 is an abundant number, since it is smaller than the sum of its proper divisors (1232741000).

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

798640000 is an equidigital number, since it uses as much as digits as its factorization.

798640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 798640000 is about 28260.2193905143. The cubic root of 798640000 is about 927.7914216131.

Adding to 798640000 its reverse (46897), we get a palindrome (798686897).

The spelling of 798640000 in words is "seven hundred ninety-eight million, six hundred forty thousand".