631705042 has 8 divisors (see below), whose sum is σ = 978124032. Its totient is φ = 305663700.

The previous prime is 631705021. The next prime is 631705069. The reversal of 631705042 is 240507136.

631705042 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 self number, because there is not a number n which added to its sum of digits gives 631705042.

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, 5094334 + ... + 5094457.

It is an arithmetic number, because the mean of its divisors is an integer number (122265504).

Almost surely, 2^631705042 is an apocalyptic number.

631705042 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

631705042 is a deficient number, since it is larger than the sum of its proper divisors (346418990).

631705042 is a wasteful number, since it uses less digits than its factorization.

631705042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10188824.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 631705042 is about 25133.7430956871. The cubic root of 631705042 is about 858.0345606529.

The spelling of 631705042 in words is "six hundred thirty-one million, seven hundred five thousand, forty-two".