634856042 has 8 divisors (see below), whose sum is σ = 974430336. Its totient is φ = 310045932.

The previous prime is 634856039. The next prime is 634856083. The reversal of 634856042 is 240658436.

634856042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 634855987 and 634856005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3690938 + ... + 3691109.

It is an arithmetic number, because the mean of its divisors is an integer number (121803792).

Almost surely, 2^634856042 is an apocalyptic number.

634856042 is a deficient number, since it is larger than the sum of its proper divisors (339574294).

634856042 is a wasteful number, since it uses less digits than its factorization.

634856042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7382092.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 634856042 is about 25196.3497753147. The cubic root of 634856042 is about 859.4588455969.

The spelling of 634856042 in words is "six hundred thirty-four million, eight hundred fifty-six thousand, forty-two".