1340421043400 has 96 divisors (see below), whose sum is σ = 3288518092800. Its totient is φ = 507094156800.

The previous prime is 1340421043333. The next prime is 1340421043433. The reversal of 1340421043400 is 43401240431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340421043400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1227656 + ... + 2046455.

It is an arithmetic number, because the mean of its divisors is an integer number (34255396800).

Almost surely, 2^{1340421043400} is an apocalyptic number.

1340421043400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340421043400 is an abundant number, since it is smaller than the sum of its proper divisors (1948097049400).

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

1340421043400 is a wasteful number, since it uses less digits than its factorization.

1340421043400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274239 (or 3274230 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1340421043400 its reverse (43401240431), we get a palindrome (1383822283831).

The spelling of 1340421043400 in words is "one trillion, three hundred forty billion, four hundred twenty-one million, forty-three thousand, four hundred".