23906330442 has 120 divisors (see below), whose sum is σ = 56750146596. Its totient is φ = 7520760576.

The previous prime is 23906330417. The next prime is 23906330489. The reversal of 23906330442 is 24403360932.

It can be written as a sum of positive squares in 2 ways, for example, as 20095614081 + 3810716361 = 141759^2 + 61731^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23906330397 and 23906330406.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 19707828 + ... + 19709040.

Almost surely, 2^23906330442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23906330442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28375073298).

23906330442 is an abundant number, since it is smaller than the sum of its proper divisors (32843816154).

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

23906330442 is a wasteful number, since it uses less digits than its factorization.

23906330442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 23906330442 in words is "twenty-three billion, nine hundred six million, three hundred thirty thousand, four hundred forty-two".