2340400040431 has 16 divisors (see below), whose sum is σ = 2499516290304. Its totient is φ = 2186087327424.

The previous prime is 2340400040411. The next prime is 2340400040441. The reversal of 2340400040431 is 1340400040432.

It is a cyclic number.

It is not a de Polignac number, because 2340400040431 - 2¹⁷ = 2340399909359 is a prime.

It is a super-2 number, since 2×2340400040431² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2340400040396 and 2340400040405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340400040411) 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, 4142500 + ... + 4673446.

It is an arithmetic number, because the mean of its divisors is an integer number (156219768144).

Almost surely, 2^{2340400040431} is an apocalyptic number.

2340400040431 is a deficient number, since it is larger than the sum of its proper divisors (159116249873).

2340400040431 is a wasteful number, since it uses less digits than its factorization.

2340400040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535470.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 2340400040431 its reverse (1340400040432), we get a palindrome (3680800080863).

Subtracting from 2340400040431 its reverse (1340400040432), we obtain a palindrome (999999999999).

The spelling of 2340400040431 in words is "two trillion, three hundred forty billion, four hundred million, forty thousand, four hundred thirty-one".