1199917488 has 240 divisors, whose sum is σ = 4142413440. Its totient is φ = 295142400.

The previous prime is 1199917487. The next prime is 1199917517. The reversal of 1199917488 is 8847199911.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (1199917487) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 490348 + ... + 492788.

It is an arithmetic number, because the mean of its divisors is an integer number (17260056).

Almost surely, 2^1199917488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1199917488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2071206720).

1199917488 is an abundant number, since it is smaller than the sum of its proper divisors (2942495952).

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

1199917488 is a wasteful number, since it uses less digits than its factorization.

1199917488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496 (or 2483 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 57.

The square root of 1199917488 is about 34639.8251727690. The cubic root of 1199917488 is about 1062.6342124899.

The spelling of 1199917488 in words is "one billion, one hundred ninety-nine million, nine hundred seventeen thousand, four hundred eighty-eight".