1236868086 has 32 divisors (see below), whose sum is σ = 2517026400. Its totient is φ = 405089280.

The previous prime is 1236868069. The next prime is 1236868093. The reversal of 1236868086 is 6808686321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653830 + ... + 655718.

It is an arithmetic number, because the mean of its divisors is an integer number (78657075).

Almost surely, 2^1236868086 is an apocalyptic number.

1236868086 is an abundant number, since it is smaller than the sum of its proper divisors (1280158314).

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

1236868086 is a wasteful number, since it uses less digits than its factorization.

1236868086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 1236868086 is about 35169.1354172945. The cubic root of 1236868086 is about 1073.4318107460.

The spelling of 1236868086 in words is "one billion, two hundred thirty-six million, eight hundred sixty-eight thousand, eighty-six".