1299116448 has 192 divisors, whose sum is σ = 4386816000. Its totient is φ = 366342912.

The previous prime is 1299116437. The next prime is 1299116449. The reversal of 1299116448 is 8446119921.

It is a happy number.

1299116448 is a `hidden beast` number, since 1 + 2 + 99 + 116 + 448 = 666.

1299116448 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1299116449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 476433 + ... + 479151.

It is an arithmetic number, because the mean of its divisors is an integer number (22848000).

Almost surely, 2^1299116448 is an apocalyptic number.

1299116448 is a gapful number since it is divisible by the number (18) 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 1299116448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2193408000).

1299116448 is an abundant number, since it is smaller than the sum of its proper divisors (3087699552).

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

1299116448 is a wasteful number, since it uses less digits than its factorization.

1299116448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824 (or 2810 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 1299116448 is about 36043.2580103409. The cubic root of 1299116448 is about 1091.1455700069.

The spelling of 1299116448 in words is "one billion, two hundred ninety-nine million, one hundred sixteen thousand, four hundred forty-eight".