853850042 has 4 divisors (see below), whose sum is σ = 1280775066. Its totient is φ = 426925020.

The previous prime is 853850033. The next prime is 853850057. The reversal of 853850042 is 240058358.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 851997721 + 1852321 = 29189^2 + 1361^2 .

It is a junction number, because it is equal to n+sod(n) for n = 853849984 and 853850011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213462509 + ... + 213462512.

Almost surely, 2^853850042 is an apocalyptic number.

853850042 is a deficient number, since it is larger than the sum of its proper divisors (426925024).

853850042 is a wasteful number, since it uses less digits than its factorization.

853850042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426925023.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 853850042 is about 29220.7125512024. The cubic root of 853850042 is about 948.6962881521.

The spelling of 853850042 in words is "eight hundred fifty-three million, eight hundred fifty thousand, forty-two".