1266402822 has 16 divisors (see below), whose sum is σ = 2574327792. Its totient is φ = 415213920.

The previous prime is 1266402821. The next prime is 1266402853. The reversal of 1266402822 is 2282046621.

1266402822 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1266402822² = 3207552215139127368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266402821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729693 + ... + 1730424.

It is an arithmetic number, because the mean of its divisors is an integer number (160895487).

Almost surely, 2^1266402822 is an apocalyptic number.

1266402822 is an abundant number, since it is smaller than the sum of its proper divisors (1307924970).

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

1266402822 is a wasteful number, since it uses less digits than its factorization.

1266402822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460183.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 1266402822 is about 35586.5539494905. The cubic root of 1266402822 is about 1081.9087251302.

The spelling of 1266402822 in words is "one billion, two hundred sixty-six million, four hundred two thousand, eight hundred twenty-two".