1299946560 has 504 divisors, whose sum is σ = 4942441728. Its totient is φ = 288921600.

The previous prime is 1299946553. The next prime is 1299946589. The reversal of 1299946560 is 656499921.

1299946560 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1299946560² = 3379722117711667200, which contains 22 as substring.

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, 41933745 + ... + 41933775.

It is an arithmetic number, because the mean of its divisors is an integer number (9806432).

Almost surely, 2^1299946560 is an apocalyptic number.

1299946560 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 1299946560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2471220864).

1299946560 is an abundant number, since it is smaller than the sum of its proper divisors (3642495168).

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

1299946560 is a wasteful number, since it uses less digits than its factorization.

1299946560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 1299946560 is about 36054.7716675616. The cubic root of 1299946560 is about 1091.3779279752.

The spelling of 1299946560 in words is "one billion, two hundred ninety-nine million, nine hundred forty-six thousand, five hundred sixty".