1252786276 has 24 divisors (see below), whose sum is σ = 2506585536. Its totient is φ = 536691360.

The previous prime is 1252786243. The next prime is 1252786307. The reversal of 1252786276 is 6726872521.

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, 75231 + ... + 90361.

It is an arithmetic number, because the mean of its divisors is an integer number (104441064).

Almost surely, 2^1252786276 is an apocalyptic number.

It is an amenable number.

1252786276 is an abundant number, since it is smaller than the sum of its proper divisors (1253799260).

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

1252786276 is a wasteful number, since it uses less digits than its factorization.

1252786276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18099 (or 18097 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 1252786276 is about 35394.7210188186. The cubic root of 1252786276 is about 1078.0171310195.

The spelling of 1252786276 in words is "one billion, two hundred fifty-two million, seven hundred eighty-six thousand, two hundred seventy-six".