2319488640 has 192 divisors, whose sum is σ = 9153855360. Its totient is φ = 530159616.

The previous prime is 2319488629. The next prime is 2319488657. The reversal of 2319488640 is 468849132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11557 + ... + 69083.

It is an arithmetic number, because the mean of its divisors is an integer number (47676330).

Almost surely, 2^2319488640 is an apocalyptic number.

2319488640 is a gapful number since it is divisible by the number (20) 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 2319488640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4576927680).

2319488640 is an abundant number, since it is smaller than the sum of its proper divisors (6834366720).

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

2319488640 is a wasteful number, since it uses less digits than its factorization.

2319488640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57559 (or 57544 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 2319488640 is about 48161.0697555609. The cubic root of 2319488640 is about 1323.7239196418.

The spelling of 2319488640 in words is "two billion, three hundred nineteen million, four hundred eighty-eight thousand, six hundred forty".