8255404742 has 16 divisors (see below), whose sum is σ = 13343714160. Its totient is φ = 3807883872.

The previous prime is 8255404733. The next prime is 8255404757. The reversal of 8255404742 is 2474045528.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8255404742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51728 + ... + 138515.

It is an arithmetic number, because the mean of its divisors is an integer number (833982135).

Almost surely, 2^8255404742 is an apocalyptic number.

8255404742 is a deficient number, since it is larger than the sum of its proper divisors (5088309418).

8255404742 is a wasteful number, since it uses less digits than its factorization.

8255404742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191927.

The product of its (nonzero) digits is 358400, while the sum is 41.

The square root of 8255404742 is about 90859.2578772246. The cubic root of 8255404742 is about 2021.0611636793.

The spelling of 8255404742 in words is "eight billion, two hundred fifty-five million, four hundred four thousand, seven hundred forty-two".