561340424 has 8 divisors (see below), whose sum is σ = 1052513310. Its totient is φ = 280670208.

The previous prime is 561340399. The next prime is 561340433. The reversal of 561340424 is 424043165.

It can be written as a sum of positive squares in only one way, i.e., 549902500 + 11437924 = 23450^2 + 3382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35083769 + ... + 35083784.

Almost surely, 2^561340424 is an apocalyptic number.

It is an amenable number.

561340424 is a deficient number, since it is larger than the sum of its proper divisors (491172886).

561340424 is a wasteful number, since it uses less digits than its factorization.

561340424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70167559 (or 70167555 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 561340424 is about 23692.6238310576. The cubic root of 561340424 is about 824.9141870952.

Adding to 561340424 its reverse (424043165), we get a palindrome (985383589).

The spelling of 561340424 in words is "five hundred sixty-one million, three hundred forty thousand, four hundred twenty-four".