561728630 has 8 divisors (see below), whose sum is σ = 1011111552. Its totient is φ = 224691448.

The previous prime is 561728617. The next prime is 561728653. The reversal of 561728630 is 36827165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28086422 + ... + 28086441.

It is an arithmetic number, because the mean of its divisors is an integer number (126388944).

Almost surely, 2^561728630 is an apocalyptic number.

561728630 is a deficient number, since it is larger than the sum of its proper divisors (449382922).

561728630 is a wasteful number, since it uses less digits than its factorization.

561728630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56172870.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 561728630 is about 23700.8149648910. The cubic root of 561728630 is about 825.1043051470.

The spelling of 561728630 in words is "five hundred sixty-one million, seven hundred twenty-eight thousand, six hundred thirty".