23413443440 has 80 divisors (see below), whose sum is σ = 55402704000. Its totient is φ = 9200384256.

The previous prime is 23413443413. The next prime is 23413443461. The reversal of 23413443440 is 4434431432.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 23413443397 and 23413443406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178711 + ... + 1198409.

It is an arithmetic number, because the mean of its divisors is an integer number (692533800).

Almost surely, 2^23413443440 is an apocalyptic number.

23413443440 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 23413443440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27701352000).

23413443440 is an abundant number, since it is smaller than the sum of its proper divisors (31989260560).

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

23413443440 is a wasteful number, since it uses less digits than its factorization.

23413443440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19974 (or 19968 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 23413443440 its reverse (4434431432), we get a palindrome (27847874872).

The spelling of 23413443440 in words is "twenty-three billion, four hundred thirteen million, four hundred forty-three thousand, four hundred forty".