1340451660426 has 32 divisors (see below), whose sum is σ = 2687460240960. Its totient is φ = 445724904576.

The previous prime is 1340451660409. The next prime is 1340451660461. The reversal of 1340451660426 is 6240661540431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10959280 + ... + 11080916.

It is an arithmetic number, because the mean of its divisors is an integer number (83983132530).

Almost surely, 2^{1340451660426} is an apocalyptic number.

1340451660426 is an abundant number, since it is smaller than the sum of its proper divisors (1347008580534).

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

1340451660426 is a wasteful number, since it uses less digits than its factorization.

1340451660426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126118.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 1340451660426 in words is "one trillion, three hundred forty billion, four hundred fifty-one million, six hundred sixty thousand, four hundred twenty-six".