798640200 has 72 divisors (see below), whose sum is σ = 2682106050. Its totient is φ = 212970240.

The previous prime is 798640181. The next prime is 798640223. The reversal of 798640200 is 2046897.

798640200 is a `hidden beast` number, since 7 + 9 + 8 + 640 + 2 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 368409636 + 430230564 = 19194^2 + 20742^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 220045 + ... + 223644.

Almost surely, 2^798640200 is an apocalyptic number.

It is an amenable number.

798640200 is an abundant number, since it is smaller than the sum of its proper divisors (1883465850).

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

798640200 is a wasteful number, since it uses less digits than its factorization.

798640200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443711 (or 443699 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 798640200 is about 28260.2229290570. Note that the first 3 decimals coincide. The cubic root of 798640200 is about 927.7914990607.

The spelling of 798640200 in words is "seven hundred ninety-eight million, six hundred forty thousand, two hundred".