23453040040240 has 80 divisors (see below), whose sum is σ = 56393413447680. Its totient is φ = 9065392577280.

The previous prime is 23453040040237. The next prime is 23453040040253. The reversal of 23453040040240 is 4204004035432.

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

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, 39180876 + ... + 39774955.

It is an arithmetic number, because the mean of its divisors is an integer number (704917668096).

Almost surely, 2^{23453040040240} is an apocalyptic number.

23453040040240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23453040040240 is an abundant number, since it is smaller than the sum of its proper divisors (32940373407440).

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

23453040040240 is a wasteful number, since it uses less digits than its factorization.

23453040040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78955970 (or 78955964 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 23453040040240 its reverse (4204004035432), we get a palindrome (27657044075672).

The spelling of 23453040040240 in words is "twenty-three trillion, four hundred fifty-three billion, forty million, forty thousand, two hundred forty".