23403540524 has 72 divisors (see below), whose sum is σ = 51574688928. Its totient is φ = 9210378240.

The previous prime is 23403540521. The next prime is 23403540527. The reversal of 23403540524 is 42504530432.

It is an interprime number because it is at equal distance from previous prime (23403540521) and next prime (23403540527).

It is not an unprimeable number, because it can be changed into a prime (23403540521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467969 + ... + 515559.

It is an arithmetic number, because the mean of its divisors is an integer number (716315124).

Almost surely, 2^23403540524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23403540524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25787344464).

23403540524 is an abundant number, since it is smaller than the sum of its proper divisors (28171148404).

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

23403540524 is a wasteful number, since it uses less digits than its factorization.

23403540524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47815 (or 47806 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

The spelling of 23403540524 in words is "twenty-three billion, four hundred three million, five hundred forty thousand, five hundred twenty-four".