1405422943506 has 12 divisors (see below), whose sum is σ = 3045083044302. Its totient is φ = 468474314496.

The previous prime is 1405422943499. The next prime is 1405422943531. The reversal of 1405422943506 is 6053492245041.

1405422943506 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 4 + 2 + 294 + 350 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1379076784281 + 26346159225 = 1174341^2 + 162315^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39039526191 + ... + 39039526226.

Almost surely, 2^{1405422943506} is an apocalyptic number.

1405422943506 is an abundant number, since it is smaller than the sum of its proper divisors (1639660100796).

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

1405422943506 is a wasteful number, since it uses less digits than its factorization.

1405422943506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78079052425 (or 78079052422 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 1405422943506 in words is "one trillion, four hundred five billion, four hundred twenty-two million, nine hundred forty-three thousand, five hundred six".