23443540530 has 64 divisors (see below), whose sum is σ = 57245892480. Its totient is φ = 6143030784.

The previous prime is 23443540499. The next prime is 23443540537. The reversal of 23443540530 is 3504534432.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23443540491 and 23443540500.

It is not an unprimeable number, because it can be changed into a prime (23443540537) 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, 807832 + ... + 836348.

It is an arithmetic number, because the mean of its divisors is an integer number (894467070).

Almost surely, 2^23443540530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23443540530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28622946240).

23443540530 is an abundant number, since it is smaller than the sum of its proper divisors (33802351950).

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

23443540530 is a wasteful number, since it uses less digits than its factorization.

23443540530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29003.

The product of its (nonzero) digits is 86400, while the sum is 33.

The spelling of 23443540530 in words is "twenty-three billion, four hundred forty-three million, five hundred forty thousand, five hundred thirty".