842140585 has 64 divisors (see below), whose sum is σ = 1230598656. Its totient is φ = 545126400.

The previous prime is 842140567. The next prime is 842140613. The reversal of 842140585 is 585041248.

It is not a de Polignac number, because 842140585 - 2⁹ = 842140073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 2690389 + ... + 2690701.

It is an arithmetic number, because the mean of its divisors is an integer number (19228104).

Almost surely, 2^842140585 is an apocalyptic number.

It is an amenable number.

842140585 is a deficient number, since it is larger than the sum of its proper divisors (388458071).

842140585 is a wasteful number, since it uses less digits than its factorization.

842140585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 842140585 is about 29019.6585955107. The cubic root of 842140585 is about 944.3395943912.

The spelling of 842140585 in words is "eight hundred forty-two million, one hundred forty thousand, five hundred eighty-five".