1340400040431 has 16 divisors (see below), whose sum is σ = 1884170937600. Its totient is φ = 845259971328.

The previous prime is 1340400040423. The next prime is 1340400040457.

1340400040431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1340400040431 - 2³ = 1340400040423 is a prime.

It is a super-2 number, since 2×1340400040431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340400040531) 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, 18136066 + ... + 18209823.

It is an arithmetic number, because the mean of its divisors is an integer number (117760683600).

Almost surely, 2^{1340400040431} is an apocalyptic number.

1340400040431 is a deficient number, since it is larger than the sum of its proper divisors (543770897169).

1340400040431 is a wasteful number, since it uses less digits than its factorization.

1340400040431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36346558.

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 13404000 and 40431, that added together give a palindrome (13444431).

The spelling of 1340400040431 in words is "one trillion, three hundred forty billion, four hundred million, forty thousand, four hundred thirty-one".