23400442132 has 96 divisors (see below), whose sum is σ = 45629982720. Its totient is φ = 10487232000.

The previous prime is 23400442057. The next prime is 23400442189. The reversal of 23400442132 is 23124400432.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23400442097 and 23400442106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43253782 + ... + 43254322.

It is an arithmetic number, because the mean of its divisors is an integer number (475312320).

Almost surely, 2^23400442132 is an apocalyptic number.

It is an amenable number.

23400442132 is a deficient number, since it is larger than the sum of its proper divisors (22229540588).

23400442132 is a wasteful number, since it uses less digits than its factorization.

23400442132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 23400442132 its reverse (23124400432), we get a palindrome (46524842564).

The spelling of 23400442132 in words is "twenty-three billion, four hundred million, four hundred forty-two thousand, one hundred thirty-two".