23424140424 has 128 divisors (see below), whose sum is σ = 64437120000. Its totient is φ = 7062891264.

The previous prime is 23424140413. The next prime is 23424140471. The reversal of 23424140424 is 42404142432.

It is a junction number, because it is equal to n+sod(n) for n = 23424140391 and 23424140400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7098727 + ... + 7102025.

It is an arithmetic number, because the mean of its divisors is an integer number (503415000).

Almost surely, 2^23424140424 is an apocalyptic number.

23424140424 is a gapful number since it is divisible by the number (24) 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 23424140424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32218560000).

23424140424 is an abundant number, since it is smaller than the sum of its proper divisors (41012979576).

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

23424140424 is a wasteful number, since it uses less digits than its factorization.

23424140424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027 (or 4023 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 23424140424 its reverse (42404142432), we get a palindrome (65828282856).

The spelling of 23424140424 in words is "twenty-three billion, four hundred twenty-four million, one hundred forty thousand, four hundred twenty-four".