1340410421992 has 8 divisors (see below), whose sum is σ = 2513269541250. Its totient is φ = 670205210992.

The previous prime is 1340410421981. The next prime is 1340410422061. The reversal of 1340410421992 is 2991240140431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1316926085476 + 23484336516 = 1147574^2 + 153246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83775651367 + ... + 83775651382.

Almost surely, 2^{1340410421992} is an apocalyptic number.

It is an amenable number.

1340410421992 is a deficient number, since it is larger than the sum of its proper divisors (1172859119258).

1340410421992 is a wasteful number, since it uses less digits than its factorization.

1340410421992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167551302755 (or 167551302751 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 1340410421992 in words is "one trillion, three hundred forty billion, four hundred ten million, four hundred twenty-one thousand, nine hundred ninety-two".