1340440242120 has 96 divisors (see below), whose sum is σ = 4978778051520. Its totient is φ = 306386340480.

The previous prime is 1340440242073. The next prime is 1340440242173. The reversal of 1340440242120 is 212420440431.

1340440242120 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 440 + 2 + 4 + 212 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265957846 + ... + 265962885.

It is an arithmetic number, because the mean of its divisors is an integer number (51862271370).

Almost surely, 2^{1340440242120} is an apocalyptic number.

1340440242120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340440242120 is an abundant number, since it is smaller than the sum of its proper divisors (3638337809400).

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

1340440242120 is a wasteful number, since it uses less digits than its factorization.

1340440242120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531920755 (or 531920748 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 1340440242120 its reverse (212420440431), we get a palindrome (1552860682551).

The spelling of 1340440242120 in words is "one trillion, three hundred forty billion, four hundred forty million, two hundred forty-two thousand, one hundred twenty".