561039360 has 192 divisors, whose sum is σ = 2052086400. Its totient is φ = 128188416.

The previous prime is 561039331. The next prime is 561039377. The reversal of 561039360 is 63930165.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213736 + ... + 216344.

It is an arithmetic number, because the mean of its divisors is an integer number (10687950).

Almost surely, 2^561039360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561039360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026043200).

561039360 is an abundant number, since it is smaller than the sum of its proper divisors (1491047040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561039360 is a wasteful number, since it uses less digits than its factorization.

561039360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 561039360 is about 23686.2694403319. The cubic root of 561039360 is about 824.7666851713.

The spelling of 561039360 in words is "five hundred sixty-one million, thirty-nine thousand, three hundred sixty".