1268798822 has 4 divisors (see below), whose sum is σ = 1903198236. Its totient is φ = 634399410.

The previous prime is 1268798819. The next prime is 1268798827. The reversal of 1268798822 is 2288978621.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268798827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317199704 + ... + 317199707.

It is an arithmetic number, because the mean of its divisors is an integer number (475799559).

Almost surely, 2^1268798822 is an apocalyptic number.

1268798822 is a deficient number, since it is larger than the sum of its proper divisors (634399414).

1268798822 is an equidigital number, since it uses as much as digits as its factorization.

1268798822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634399413.

The product of its digits is 1548288, while the sum is 53.

The square root of 1268798822 is about 35620.2024418728. The cubic root of 1268798822 is about 1082.5906093228.

The spelling of 1268798822 in words is "one billion, two hundred sixty-eight million, seven hundred ninety-eight thousand, eight hundred twenty-two".