1605795842 has 16 divisors (see below), whose sum is σ = 2797922112. Its totient is φ = 676915920.

The previous prime is 1605795839. The next prime is 1605795847. The reversal of 1605795842 is 2485975061.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1605795847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939308 + ... + 941015.

It is an arithmetic number, because the mean of its divisors is an integer number (174870132).

Almost surely, 2^1605795842 is an apocalyptic number.

1605795842 is a deficient number, since it is larger than the sum of its proper divisors (1192126270).

1605795842 is a wasteful number, since it uses less digits than its factorization.

1605795842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880393.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 1605795842 is about 40072.3825346085. The cubic root of 1605795842 is about 1171.0176555167.

The spelling of 1605795842 in words is "one billion, six hundred five million, seven hundred ninety-five thousand, eight hundred forty-two".