1290999360 has 112 divisors (see below), whose sum is σ = 4684507776. Its totient is φ = 295084032.

The previous prime is 1290999341. The next prime is 1290999377. The reversal of 1290999360 is 639990921.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89337 + ... + 102776.

Almost surely, 2^1290999360 is an apocalyptic number.

1290999360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1290999360 is an abundant number, since it is smaller than the sum of its proper divisors (3393508416).

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

1290999360 is a wasteful number, since it uses less digits than its factorization.

1290999360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192140 (or 192130 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 48.

The square root of 1290999360 is about 35930.4795403568. The cubic root of 1290999360 is about 1088.8682695588.

The spelling of 1290999360 in words is "one billion, two hundred ninety million, nine hundred ninety-nine thousand, three hundred sixty".