853642742 has 8 divisors (see below), whose sum is σ = 1282445136. Its totient is φ = 426161032.

The previous prime is 853642729. The next prime is 853642747. The reversal of 853642742 is 247246358.

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

It is a self number, because there is not a number n which added to its sum of digits gives 853642742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853642747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328553 + ... + 331140.

It is an arithmetic number, because the mean of its divisors is an integer number (160305642).

Almost surely, 2^853642742 is an apocalyptic number.

853642742 is a deficient number, since it is larger than the sum of its proper divisors (428802394).

853642742 is a wasteful number, since it uses less digits than its factorization.

853642742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660342.

The product of its digits is 322560, while the sum is 41.

The square root of 853642742 is about 29217.1651944538. The cubic root of 853642742 is about 948.6195062628.

The spelling of 853642742 in words is "eight hundred fifty-three million, six hundred forty-two thousand, seven hundred forty-two".