1252766836 has 24 divisors (see below), whose sum is σ = 2205181440. Its totient is φ = 622725792.

The previous prime is 1252766789. The next prime is 1252766861. The reversal of 1252766836 is 6386672521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711325 + ... + 713083.

It is an arithmetic number, because the mean of its divisors is an integer number (91882560).

Almost surely, 2^1252766836 is an apocalyptic number.

It is an amenable number.

1252766836 is a deficient number, since it is larger than the sum of its proper divisors (952414604).

1252766836 is a wasteful number, since it uses less digits than its factorization.

1252766836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703 (or 2701 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 1252766836 is about 35394.4464005301. The cubic root of 1252766836 is about 1078.0115549789.

The spelling of 1252766836 in words is "one billion, two hundred fifty-two million, seven hundred sixty-six thousand, eight hundred thirty-six".