1266625350 has 144 divisors (see below), whose sum is σ = 3588989040. Its totient is φ = 332035200.

The previous prime is 1266625343. The next prime is 1266625363. The reversal of 1266625350 is 535266621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 740296 + ... + 742004.

It is an arithmetic number, because the mean of its divisors is an integer number (24923535).

Almost surely, 2^1266625350 is an apocalyptic number.

1266625350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266625350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1794494520).

1266625350 is an abundant number, since it is smaller than the sum of its proper divisors (2322363690).

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

1266625350 is a wasteful number, since it uses less digits than its factorization.

1266625350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 1266625350 is about 35589.6803863142. The cubic root of 1266625350 is about 1081.9720911936.

It can be divided in two parts, 126 and 6625350, that added together give a square (6625476 = 2574²).

The spelling of 1266625350 in words is "one billion, two hundred sixty-six million, six hundred twenty-five thousand, three hundred fifty".