561707242 has 16 divisors (see below), whose sum is σ = 879762240. Its totient is φ = 268468992.

The previous prime is 561707233. The next prime is 561707243. The reversal of 561707242 is 242707165.

It is a junction number, because it is equal to n+sod(n) for n = 561707198 and 561707207.

It is not an unprimeable number, because it can be changed into a prime (561707243) 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 7 ways as a sum of consecutive naturals, for example, 94309 + ... + 100087.

It is an arithmetic number, because the mean of its divisors is an integer number (54985140).

Almost surely, 2^561707242 is an apocalyptic number.

561707242 is a deficient number, since it is larger than the sum of its proper divisors (318054998).

561707242 is a wasteful number, since it uses less digits than its factorization.

561707242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7917.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 561707242 is about 23700.3637524828. The cubic root of 561707242 is about 825.0938329759.

The spelling of 561707242 in words is "five hundred sixty-one million, seven hundred seven thousand, two hundred forty-two".