13400400143232 has 128 divisors (see below), whose sum is σ = 41269348512000. Its totient is φ = 4272591324672.

The previous prime is 13400400143189. The next prime is 13400400143237. The reversal of 13400400143232 is 23234100400431.

13400400143232 is a `hidden beast` number, since 13 + 4 + 0 + 0 + 400 + 14 + 3 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×13400400143232² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13400400143196 and 13400400143205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400400143237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84212482 + ... + 84371457.

It is an arithmetic number, because the mean of its divisors is an integer number (322416785250).

Almost surely, 2^{13400400143232} is an apocalyptic number.

13400400143232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13400400143232 is an abundant number, since it is smaller than the sum of its proper divisors (27868948368768).

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

13400400143232 is a wasteful number, since it uses less digits than its factorization.

13400400143232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168583985 (or 168583967 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13400400143232 its reverse (23234100400431), we get a palindrome (36634500543663).

The spelling of 13400400143232 in words is "thirteen trillion, four hundred billion, four hundred million, one hundred forty-three thousand, two hundred thirty-two".