561444004 has 12 divisors (see below), whose sum is σ = 1071847728. Its totient is φ = 255201800.

The previous prime is 561444001. The next prime is 561444017. The reversal of 561444004 is 400444165.

561444004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (561444001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6380002 + ... + 6380089.

It is an arithmetic number, because the mean of its divisors is an integer number (89320644).

Almost surely, 2^561444004 is an apocalyptic number.

It is an amenable number.

561444004 is a deficient number, since it is larger than the sum of its proper divisors (510403724).

561444004 is a wasteful number, since it uses less digits than its factorization.

561444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12760106 (or 12760104 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 561444004 is about 23694.8096426200. The cubic root of 561444004 is about 824.9649224143.

Adding to 561444004 its reverse (400444165), we get a palindrome (961888169).

The spelling of 561444004 in words is "five hundred sixty-one million, four hundred forty-four thousand, four".