905740842 has 8 divisors (see below), whose sum is σ = 1811481696. Its totient is φ = 301913612.

The previous prime is 905740817. The next prime is 905740859. The reversal of 905740842 is 248047509.

905740842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

905740842 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 905740842.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75478398 + ... + 75478409.

It is an arithmetic number, because the mean of its divisors is an integer number (226435212).

Almost surely, 2^905740842 is an apocalyptic number.

905740842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

905740842 is a wasteful number, since it uses less digits than its factorization.

905740842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150956812.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 905740842 is about 30095.5286047612. The cubic root of 905740842 is about 967.5378951432.

The spelling of 905740842 in words is "nine hundred five million, seven hundred forty thousand, eight hundred forty-two".