2330861840 has 160 divisors (see below), whose sum is σ = 5901050880. Its totient is φ = 852992000.

The previous prime is 2330861831. The next prime is 2330861843. The reversal of 2330861840 is 481680332.

It is a happy number.

It is a Cunningham number, because it is equal to 48279²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 2330861840.

It is not an unprimeable number, because it can be changed into a prime (2330861843) 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, 9752441 + ... + 9752679.

It is an arithmetic number, because the mean of its divisors is an integer number (36881568).

Almost surely, 2^2330861840 is an apocalyptic number.

2330861840 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 2330861840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2950525440).

2330861840 is an abundant number, since it is smaller than the sum of its proper divisors (3570189040).

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

2330861840 is a wasteful number, since it uses less digits than its factorization.

2330861840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 2330861840 is about 48278.9999896435. Note that the first 4 decimals coincide. The cubic root of 2330861840 is about 1325.8839413189.

The spelling of 2330861840 in words is "two billion, three hundred thirty million, eight hundred sixty-one thousand, eight hundred forty".