1286799360 has 544 divisors, whose sum is σ = 5435776512. Its totient is φ = 251658240.

The previous prime is 1286799341. The next prime is 1286799379. The reversal of 1286799360 is 639976821.

It is an interprime number because it is at equal distance from previous prime (1286799341) and next prime (1286799379).

It is a tau number, because it is divible by the number of its divisors (544).

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 75694072 + ... + 75694088.

Almost surely, 2^1286799360 is an apocalyptic number.

1286799360 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 1286799360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2717888256).

1286799360 is an abundant number, since it is smaller than the sum of its proper divisors (4148977152).

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

1286799360 is an equidigital number, since it uses as much as digits as its factorization.

1286799360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 1286799360 is about 35871.9857270266. The cubic root of 1286799360 is about 1087.6861840034.

The spelling of 1286799360 in words is "one billion, two hundred eighty-six million, seven hundred ninety-nine thousand, three hundred sixty".