1299995466 has 256 divisors, whose sum is σ = 3662807040. Its totient is φ = 297285120.

The previous prime is 1299995449. The next prime is 1299995471. The reversal of 1299995466 is 6645999921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9488950 + ... + 9489086.

It is an arithmetic number, because the mean of its divisors is an integer number (14307840).

Almost surely, 2^1299995466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1299995466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831403520).

1299995466 is an abundant number, since it is smaller than the sum of its proper divisors (2362811574).

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

1299995466 is a wasteful number, since it uses less digits than its factorization.

1299995466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249.

The product of its digits is 9447840, while the sum is 60.

The square root of 1299995466 is about 36055.4498793178. The cubic root of 1299995466 is about 1091.3916142454.

The spelling of 1299995466 in words is "one billion, two hundred ninety-nine million, nine hundred ninety-five thousand, four hundred sixty-six".