23400242524440 has 96 divisors (see below), whose sum is σ = 77668890137280. Its totient is φ = 6107297335296.

The previous prime is 23400242524433. The next prime is 23400242524489. The reversal of 23400242524440 is 4442524200432.

It is a happy number.

23400242524440 is a `hidden beast` number, since 2 + 3 + 400 + 2 + 4 + 2 + 5 + 244 + 4 + 0 = 666.

It is a super-2 number, since 2×23400242524440² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23400242524395 and 23400242524404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 691479609 + ... + 691513448.

It is an arithmetic number, because the mean of its divisors is an integer number (809050938930).

Almost surely, 2^{23400242524440} is an apocalyptic number.

23400242524440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23400242524440 is an abundant number, since it is smaller than the sum of its proper divisors (54268647612840).

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

23400242524440 is a wasteful number, since it uses less digits than its factorization.

23400242524440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382993121 (or 1382993114 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 36.

Adding to 23400242524440 its reverse (4442524200432), we get a palindrome (27842766724872).

The spelling of 23400242524440 in words is "twenty-three trillion, four hundred billion, two hundred forty-two million, five hundred twenty-four thousand, four hundred forty".