1266240352 has 48 divisors (see below), whose sum is σ = 2698475472. Its totient is φ = 581414400.

The previous prime is 1266240319. The next prime is 1266240373. The reversal of 1266240352 is 2530426621.

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, 74227 + ... + 89677.

It is an arithmetic number, because the mean of its divisors is an integer number (56218239).

Almost surely, 2^1266240352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266240352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349237736).

1266240352 is an abundant number, since it is smaller than the sum of its proper divisors (1432235120).

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

1266240352 is a wasteful number, since it uses less digits than its factorization.

1266240352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15671 (or 15663 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1266240352 is about 35584.2711320606. The cubic root of 1266240352 is about 1081.8624562219.

Adding to 1266240352 its reverse (2530426621), we get a palindrome (3796666973).

The spelling of 1266240352 in words is "one billion, two hundred sixty-six million, two hundred forty thousand, three hundred fifty-two".