1298248560 has 200 divisors, whose sum is σ = 5153333856. Its totient is φ = 296732160.

The previous prime is 1298248519. The next prime is 1298248591. The reversal of 1298248560 is 658428921.

1298248560 is a `hidden beast` number, since 1 + 2 + 9 + 82 + 4 + 8 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31050 + ... + 59670.

Almost surely, 2^1298248560 is an apocalyptic number.

1298248560 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 1298248560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2576666928).

1298248560 is an abundant number, since it is smaller than the sum of its proper divisors (3855085296).

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

1298248560 is a wasteful number, since it uses less digits than its factorization.

1298248560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28653 (or 28638 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1298248560 is about 36031.2164657259. The cubic root of 1298248560 is about 1090.9025322333.

It can be divided in two parts, 129824 and 8560, that added together give a square (138384 = 372²).

The spelling of 1298248560 in words is "one billion, two hundred ninety-eight million, two hundred forty-eight thousand, five hundred sixty".