1299015360 has 224 divisors, whose sum is σ = 4608576000. Its totient is φ = 344448000.

The previous prime is 1299015359. The next prime is 1299015379. The reversal of 1299015360 is 635109921.

1299015360 is a `hidden beast` number, since 1 + 299 + 0 + 1 + 5 + 360 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2168341 + ... + 2168939.

It is an arithmetic number, because the mean of its divisors is an integer number (20574000).

Almost surely, 2^1299015360 is an apocalyptic number.

1299015360 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 1299015360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304288000).

1299015360 is an abundant number, since it is smaller than the sum of its proper divisors (3309560640).

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

1299015360 is a wasteful number, since it uses less digits than its factorization.

1299015360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 1299015360 is about 36041.8556680979. The cubic root of 1299015360 is about 1091.1172675441.

The spelling of 1299015360 in words is "one billion, two hundred ninety-nine million, fifteen thousand, three hundred sixty".