1340400040458 has 16 divisors (see below), whose sum is σ = 2680813786176. Its totient is φ = 446797729280.

The previous prime is 1340400040457. The next prime is 1340400040489. The reversal of 1340400040458 is 8540400040431.

It is not an unprimeable number, because it can be changed into a prime (1340400040457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057738 + ... + 1949258.

It is an arithmetic number, because the mean of its divisors is an integer number (167550861636).

Almost surely, 2^{1340400040458} is an apocalyptic number.

1340400040458 is an abundant number, since it is smaller than the sum of its proper divisors (1340413745718).

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

1340400040458 is a wasteful number, since it uses less digits than its factorization.

1340400040458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142109.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 1340400040458 its reverse (8540400040431), we get a palindrome (9880800080889).

The spelling of 1340400040458 in words is "one trillion, three hundred forty billion, four hundred million, forty thousand, four hundred fifty-eight".