1340240043330 has 24 divisors (see below), whose sum is σ = 3484624112892. Its totient is φ = 357397344864.

The previous prime is 1340240043287. The next prime is 1340240043391. The reversal of 1340240043330 is 333400420431.

1340240043330 is a `hidden beast` number, since 13 + 40 + 240 + 0 + 43 + 330 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1340053966449 + 186076881 = 1157607^2 + 13641^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1340240043294 and 1340240043303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7445777929 + ... + 7445778108.

Almost surely, 2^{1340240043330} is an apocalyptic number.

1340240043330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340240043330 is an abundant number, since it is smaller than the sum of its proper divisors (2144384069562).

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

1340240043330 is a wasteful number, since it uses less digits than its factorization.

1340240043330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14891556050 (or 14891556047 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 1340240043330 its reverse (333400420431), we get a palindrome (1673640463761).

The spelling of 1340240043330 in words is "one trillion, three hundred forty billion, two hundred forty million, forty-three thousand, three hundred thirty".