561728396 has 24 divisors (see below), whose sum is σ = 1016064000. Its totient is φ = 271568912.

The previous prime is 561728383. The next prime is 561728417. The reversal of 561728396 is 693827165.

561728396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 561728396.

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, 2396 + ... + 33603.

It is an arithmetic number, because the mean of its divisors is an integer number (42336000).

Almost surely, 2^561728396 is an apocalyptic number.

It is an amenable number.

561728396 is a deficient number, since it is larger than the sum of its proper divisors (454335604).

561728396 is a wasteful number, since it uses less digits than its factorization.

561728396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36133 (or 36131 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 561728396 is about 23700.8100283514. The cubic root of 561728396 is about 825.1041905754.

The spelling of 561728396 in words is "five hundred sixty-one million, seven hundred twenty-eight thousand, three hundred ninety-six".