1240520052042 has 24 divisors (see below), whose sum is σ = 2688852148320. Its totient is φ = 413343806760.

The previous prime is 1240520051963. The next prime is 1240520052061. The reversal of 1240520052042 is 2402500250421.

1240520052042 is a `hidden beast` number, since 1 + 2 + 405 + 200 + 52 + 0 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1240520051997 and 1240520052015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13526134 + ... + 13617537.

It is an arithmetic number, because the mean of its divisors is an integer number (112035506180).

Almost surely, 2^{1240520052042} is an apocalyptic number.

1240520052042 is an abundant number, since it is smaller than the sum of its proper divisors (1448332096278).

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

1240520052042 is a wasteful number, since it uses less digits than its factorization.

1240520052042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27146218 (or 27146215 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The spelling of 1240520052042 in words is "one trillion, two hundred forty billion, five hundred twenty million, fifty-two thousand, forty-two".