2323189440 has 336 divisors, whose sum is σ = 9389461536. Its totient is φ = 519782400.

The previous prime is 2323189433. The next prime is 2323189459. The reversal of 2323189440 is 449813232.

2323189440 is a `hidden beast` number, since 2 + 32 + 3 + 189 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2323189395 and 2323189404.

It is an unprimeable number.

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, 409020 + ... + 414660.

It is an arithmetic number, because the mean of its divisors is an integer number (27944826).

Almost surely, 2^2323189440 is an apocalyptic number.

2323189440 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 2323189440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4694730768).

2323189440 is an abundant number, since it is smaller than the sum of its proper divisors (7066272096).

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

2323189440 is a wasteful number, since it uses less digits than its factorization.

2323189440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5688 (or 5675 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2323189440 is about 48199.4755158186. The cubic root of 2323189440 is about 1324.4275566848.

The spelling of 2323189440 in words is "two billion, three hundred twenty-three million, one hundred eighty-nine thousand, four hundred forty".