1340405542124 has 48 divisors (see below), whose sum is σ = 2591889342336. Its totient is φ = 601476960000.

The previous prime is 1340405542103. The next prime is 1340405542153. The reversal of 1340405542124 is 4212455040431.

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, 710939 + ... + 1785005.

It is an arithmetic number, because the mean of its divisors is an integer number (53997694632).

Almost surely, 2^{1340405542124} is an apocalyptic number.

It is an amenable number.

1340405542124 is a deficient number, since it is larger than the sum of its proper divisors (1251483800212).

1340405542124 is a wasteful number, since it uses less digits than its factorization.

1340405542124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074446 (or 1074444 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 1340405542124 in words is "one trillion, three hundred forty billion, four hundred five million, five hundred forty-two thousand, one hundred twenty-four".