1190380872 has 64 divisors (see below), whose sum is σ = 3083690880. Its totient is φ = 382620672.

The previous prime is 1190380859. The next prime is 1190380879. The reversal of 1190380872 is 2780830911.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1190380872.

It is not an unprimeable number, because it can be changed into a prime (1190380879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94413 + ... + 106275.

It is an arithmetic number, because the mean of its divisors is an integer number (48182670).

Almost surely, 2^1190380872 is an apocalyptic number.

1190380872 is a gapful number since it is divisible by the number (12) 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 1190380872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1541845440).

1190380872 is an abundant number, since it is smaller than the sum of its proper divisors (1893310008).

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

1190380872 is a wasteful number, since it uses less digits than its factorization.

1190380872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12022 (or 12018 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1190380872 is about 34501.8966435180. The cubic root of 1190380872 is about 1059.8115459443.

The spelling of 1190380872 in words is "one billion, one hundred ninety million, three hundred eighty thousand, eight hundred seventy-two".