1260280944 has 400 divisors, whose sum is σ = 4301946880. Its totient is φ = 352719360.

The previous prime is 1260280943. The next prime is 1260280949. The reversal of 1260280944 is 4490820621.

1260280944 is a `hidden beast` number, since 1 + 2 + 602 + 8 + 0 + 9 + 44 = 666.

It is a super-2 number, since 2×1260280944² = 3176616115619062272, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1260280899 and 1260280908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260280943) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9923409 + ... + 9923535.

Almost surely, 2^1260280944 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 1260280944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2150973440).

1260280944 is an abundant number, since it is smaller than the sum of its proper divisors (3041665936).

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

1260280944 is a wasteful number, since it uses less digits than its factorization.

1260280944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1260280944 is about 35500.4358283106. The cubic root of 1260280944 is about 1080.1625681206.

The spelling of 1260280944 in words is "one billion, two hundred sixty million, two hundred eighty thousand, nine hundred forty-four".