1319272868 has 24 divisors (see below), whose sum is σ = 2345220864. Its totient is φ = 649241600.

The previous prime is 1319272861. The next prime is 1319272897. The reversal of 1319272868 is 8682729131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1319272861) 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, 178421 + ... + 185667.

It is an arithmetic number, because the mean of its divisors is an integer number (97717536).

Almost surely, 2^1319272868 is an apocalyptic number.

It is an amenable number.

1319272868 is a deficient number, since it is larger than the sum of its proper divisors (1025947996).

1319272868 is a wasteful number, since it uses less digits than its factorization.

1319272868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963 (or 7961 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 1319272868 is about 36321.7960459006. The cubic root of 1319272868 is about 1096.7598503406.

The spelling of 1319272868 in words is "one billion, three hundred nineteen million, two hundred seventy-two thousand, eight hundred sixty-eight".