561330430 has 32 divisors (see below), whose sum is σ = 1024478208. Its totient is φ = 221421600.

The previous prime is 561330403. The next prime is 561330439. The reversal of 561330430 is 34033165.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 561330395 and 561330404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561330439) 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 15 ways as a sum of consecutive naturals, for example, 278125 + ... + 280135.

It is an arithmetic number, because the mean of its divisors is an integer number (32014944).

Almost surely, 2^561330430 is an apocalyptic number.

561330430 is a deficient number, since it is larger than the sum of its proper divisors (463147778).

561330430 is a wasteful number, since it uses less digits than its factorization.

561330430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 561330430 is about 23692.4129205955. The cubic root of 561330430 is about 824.9092915268.

Adding to 561330430 its reverse (34033165), we get a palindrome (595363595).

The spelling of 561330430 in words is "five hundred sixty-one million, three hundred thirty thousand, four hundred thirty".