1266250752 has 264 divisors, whose sum is σ = 4075658880. Its totient is φ = 388177920.

The previous prime is 1266250747. The next prime is 1266250757. The reversal of 1266250752 is 2570526621.

1266250752 is a `hidden beast` number, since 1 + 26 + 625 + 0 + 7 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1266250747) and next prime (1266250757).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266250757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4672377 + ... + 4672647.

Almost surely, 2^1266250752 is an apocalyptic number.

1266250752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266250752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2037829440).

1266250752 is an abundant number, since it is smaller than the sum of its proper divisors (2809408128).

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

1266250752 is a wasteful number, since it uses less digits than its factorization.

1266250752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1266250752 is about 35584.4172637406. The cubic root of 1266250752 is about 1081.8654180974.

The spelling of 1266250752 in words is "one billion, two hundred sixty-six million, two hundred fifty thousand, seven hundred fifty-two".