13400400202040 has 64 divisors (see below), whose sum is σ = 31786394176800. Its totient is φ = 5070269716992.

The previous prime is 13400400202037. The next prime is 13400400202061. The reversal of 13400400202040 is 4020200400431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13004567 + ... + 13997126.

Almost surely, 2^{13400400202040} is an apocalyptic number.

13400400202040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13400400202040 is an abundant number, since it is smaller than the sum of its proper divisors (18385993974760).

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

13400400202040 is a wasteful number, since it uses less digits than its factorization.

13400400202040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27002376 (or 27002372 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 13400400202040 its reverse (4020200400431), we get a palindrome (17420600602471).

The spelling of 13400400202040 in words is "thirteen trillion, four hundred billion, four hundred million, two hundred two thousand, forty".