2323565440 has 128 divisors (see below), whose sum is σ = 6721963200. Its totient is φ = 749764608.

The previous prime is 2323565437. The next prime is 2323565441. The reversal of 2323565440 is 445653232.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 2323565396 and 2323565405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2323565441) 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, 60906 + ... + 91414.

Almost surely, 2^2323565440 is an apocalyptic number.

2323565440 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 2323565440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3360981600).

2323565440 is an abundant number, since it is smaller than the sum of its proper divisors (4398397760).

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

2323565440 is a wasteful number, since it uses less digits than its factorization.

2323565440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30552 (or 30540 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

The square root of 2323565440 is about 48203.3758153928. The cubic root of 2323565440 is about 1324.4990041368.

The spelling of 2323565440 in words is "two billion, three hundred twenty-three million, five hundred sixty-five thousand, four hundred forty".