835257042 has 16 divisors (see below), whose sum is σ = 1856126880. Its totient is φ = 278418996.

The previous prime is 835257019. The next prime is 835257047. The reversal of 835257042 is 240752538.

835257042 is a `hidden beast` number, since 83 + 5 + 2 + 570 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 835256988 and 835257006.

It is not an unprimeable number, because it can be changed into a prime (835257047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7733808 + ... + 7733915.

It is an arithmetic number, because the mean of its divisors is an integer number (116007930).

Almost surely, 2^835257042 is an apocalyptic number.

835257042 is an abundant number, since it is smaller than the sum of its proper divisors (1020869838).

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

835257042 is a wasteful number, since it uses less digits than its factorization.

835257042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15467734 (or 15467728 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 835257042 is about 28900.8138639728. The cubic root of 835257042 is about 941.7595840683.

The spelling of 835257042 in words is "eight hundred thirty-five million, two hundred fifty-seven thousand, forty-two".