1266266200 has 48 divisors (see below), whose sum is σ = 2967310080. Its totient is φ = 502508160.

The previous prime is 1266266167. The next prime is 1266266251. The reversal of 1266266200 is 26626621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474 + ... + 50326.

It is an arithmetic number, because the mean of its divisors is an integer number (61818960).

Almost surely, 2^1266266200 is an apocalyptic number.

1266266200 is a gapful number since it is divisible by the number (10) 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 1266266200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483655040).

1266266200 is an abundant number, since it is smaller than the sum of its proper divisors (1701043880).

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

1266266200 is a wasteful number, since it uses less digits than its factorization.

1266266200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49996 (or 49987 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1266266200 is about 35584.6343243822. The cubic root of 1266266200 is about 1081.8698175917.

The spelling of 1266266200 in words is "one billion, two hundred sixty-six million, two hundred sixty-six thousand, two hundred".