23404422042 has 96 divisors (see below), whose sum is σ = 54238766400. Its totient is φ = 7559153280.

The previous prime is 23404422017. The next prime is 23404422047. The reversal of 23404422042 is 24022440432.

23404422042 is a `hidden beast` number, since 234 + 0 + 4 + 422 + 0 + 4 + 2 = 666.

It is a super-2 number, since 2×23404422042² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23404421997 and 23404422015.

It is not an unprimeable number, because it can be changed into a prime (23404422047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2965033 + ... + 2972915.

It is an arithmetic number, because the mean of its divisors is an integer number (564987150).

Almost surely, 2^23404422042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23404422042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27119383200).

23404422042 is an abundant number, since it is smaller than the sum of its proper divisors (30834344358).

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

23404422042 is a wasteful number, since it uses less digits than its factorization.

23404422042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090 (or 8078 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 23404422042 its reverse (24022440432), we get a palindrome (47426862474).

The spelling of 23404422042 in words is "twenty-three billion, four hundred four million, four hundred twenty-two thousand, forty-two".