561360 has 40 divisors (see below), whose sum is σ = 1740960. Its totient is φ = 149632.

The previous prime is 561359. The next prime is 561367. The reversal of 561360 is 63165.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930 + ... + 1409.

It is an arithmetic number, because the mean of its divisors is an integer number (43524).

2⁵⁶¹³⁶⁰ is an apocalyptic number.

It is an amenable number.

561360 is an abundant number, since it is smaller than the sum of its proper divisors (1179600).

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

561360 is a wasteful number, since it uses less digits than its factorization.

561360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 561360 is about 749.2396145426. The cubic root of 561360 is about 82.4923776245.

The spelling of 561360 in words is "five hundred sixty-one thousand, three hundred sixty".