1321422886 has 48 divisors (see below), whose sum is σ = 2448856800. Its totient is φ = 531379968.

The previous prime is 1321422877. The next prime is 1321422889. The reversal of 1321422886 is 6882241231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321422889) 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 23 ways as a sum of consecutive naturals, for example, 647055 + ... + 649093.

It is an arithmetic number, because the mean of its divisors is an integer number (51017850).

Almost surely, 2^1321422886 is an apocalyptic number.

1321422886 is a deficient number, since it is larger than the sum of its proper divisors (1127433914).

1321422886 is a wasteful number, since it uses less digits than its factorization.

1321422886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461 (or 2454 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 1321422886 is about 36351.3807990838. The cubic root of 1321422886 is about 1097.3553232113.

It can be divided in two parts, 13214 and 22886, that added together give a square (36100 = 190²).

The spelling of 1321422886 in words is "one billion, three hundred twenty-one million, four hundred twenty-two thousand, eight hundred eighty-six".