23405144000 has 168 divisors, whose sum is σ = 67427289072. Its totient is φ = 8024486400.

The previous prime is 23405143997. The next prime is 23405144027. The reversal of 23405144000 is 44150432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362147 + ... + 421853.

Almost surely, 2^23405144000 is an apocalyptic number.

23405144000 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 23405144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33713644536).

23405144000 is an abundant number, since it is smaller than the sum of its proper divisors (44022145072).

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

23405144000 is an equidigital number, since it uses as much as digits as its factorization.

23405144000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59748 (or 59721 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 23405144000 its reverse (44150432), we get a palindrome (23449294432).

The spelling of 23405144000 in words is "twenty-three billion, four hundred five million, one hundred forty-four thousand".