23364226520440 has 128 divisors (see below), whose sum is σ = 56888824608000. Its totient is φ = 8584858533888.

The previous prime is 23364226520431. The next prime is 23364226520443. The reversal of 23364226520440 is 4402562246332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23364226520443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184989792 + ... + 185116048.

It is an arithmetic number, because the mean of its divisors is an integer number (444443942250).

Almost surely, 2^{23364226520440} is an apocalyptic number.

23364226520440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23364226520440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28444412304000).

23364226520440 is an abundant number, since it is smaller than the sum of its proper divisors (33524598087560).

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

23364226520440 is a wasteful number, since it uses less digits than its factorization.

23364226520440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128009 (or 128005 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 43.

Adding to 23364226520440 its reverse (4402562246332), we get a palindrome (27766788766772).

The spelling of 23364226520440 in words is "twenty-three trillion, three hundred sixty-four billion, two hundred twenty-six million, five hundred twenty thousand, four hundred forty".