1366020872 has 16 divisors (see below), whose sum is σ = 2649609900. Its totient is φ = 659458240.

The previous prime is 1366020869. The next prime is 1366020881. The reversal of 1366020872 is 2780206631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1187905156 + 178115716 = 34466^2 + 13346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2943779 + ... + 2944242.

Almost surely, 2^1366020872 is an apocalyptic number.

It is an amenable number.

1366020872 is a deficient number, since it is larger than the sum of its proper divisors (1283589028).

1366020872 is a wasteful number, since it uses less digits than its factorization.

1366020872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888056 (or 5888052 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1366020872 is about 36959.7195876809. The cubic root of 1366020872 is about 1109.5642236053.

The spelling of 1366020872 in words is "one billion, three hundred sixty-six million, twenty thousand, eight hundred seventy-two".