1321444196 has 24 divisors (see below), whose sum is σ = 2387513856. Its totient is φ = 639485280.

The previous prime is 1321444193. The next prime is 1321444199. The reversal of 1321444196 is 6914441231.

It is an interprime number because it is at equal distance from previous prime (1321444193) and next prime (1321444199).

It is not an unprimeable number, because it can be changed into a prime (1321444193) 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, 4895 + ... + 51641.

It is an arithmetic number, because the mean of its divisors is an integer number (99479744).

Almost surely, 2^1321444196 is an apocalyptic number.

It is an amenable number.

1321444196 is a deficient number, since it is larger than the sum of its proper divisors (1066069660).

1321444196 is a wasteful number, since it uses less digits than its factorization.

1321444196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46979 (or 46977 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 1321444196 is about 36351.6739091888. The cubic root of 1321444196 is about 1097.3612220336.

The spelling of 1321444196 in words is "one billion, three hundred twenty-one million, four hundred forty-four thousand, one hundred ninety-six".