1340894021000 has 64 divisors (see below), whose sum is σ = 3138325032960. Its totient is φ = 536249400000.

The previous prime is 1340894020993. The next prime is 1340894021021. The reversal of 1340894021000 is 1204980431.

It is a happy number.

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, 4918265 + ... + 5183735.

It is an arithmetic number, because the mean of its divisors is an integer number (49036328640).

Almost surely, 2^{1340894021000} is an apocalyptic number.

1340894021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340894021000 is an abundant number, since it is smaller than the sum of its proper divisors (1797431011960).

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

1340894021000 is a wasteful number, since it uses less digits than its factorization.

1340894021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270543 (or 270529 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 1340894021000 in words is "one trillion, three hundred forty billion, eight hundred ninety-four million, twenty-one thousand".