561630434 has 16 divisors (see below), whose sum is σ = 855429120. Its totient is φ = 276506880.

The previous prime is 561630409. The next prime is 561630463. The reversal of 561630434 is 434036165.

561630434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 561630434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55874 + ... + 65154.

It is an arithmetic number, because the mean of its divisors is an integer number (53464320).

Almost surely, 2^561630434 is an apocalyptic number.

561630434 is a deficient number, since it is larger than the sum of its proper divisors (293798686).

561630434 is a wasteful number, since it uses less digits than its factorization.

561630434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9745.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 561630434 is about 23698.7433000149. The cubic root of 561630434 is about 825.0562234104.

Adding to 561630434 its reverse (434036165), we get a palindrome (995666599).

The spelling of 561630434 in words is "five hundred sixty-one million, six hundred thirty thousand, four hundred thirty-four".