23440522123640 has 32 divisors (see below), whose sum is σ = 53967713730480. Its totient is φ = 9158157480192.

The previous prime is 23440522123591. The next prime is 23440522123651. The reversal of 23440522123640 is 4632122504432.

It is a junction number, because it is equal to n+sod(n) for n = 23440522123594 and 23440522123603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6814103549 + ... + 6814106988.

Almost surely, 2^{23440522123640} is an apocalyptic number.

23440522123640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23440522123640 is an abundant number, since it is smaller than the sum of its proper divisors (30527191606840).

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

23440522123640 is a wasteful number, since it uses less digits than its factorization.

23440522123640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13628210591 (or 13628210587 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

The spelling of 23440522123640 in words is "twenty-three trillion, four hundred forty billion, five hundred twenty-two million, one hundred twenty-three thousand, six hundred forty".