5661360 has 80 divisors (see below), whose sum is σ = 19507680. Its totient is φ = 1509120.

The previous prime is 5661343. The next prime is 5661367. The reversal of 5661360 is 631665.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5661367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 3470.

It is an arithmetic number, because the mean of its divisors is an integer number (243846).

Almost surely, 2^5661360 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 5661360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9753840).

5661360 is an abundant number, since it is smaller than the sum of its proper divisors (13846320).

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

5661360 is a wasteful number, since it uses less digits than its factorization.

5661360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643 (or 2631 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 5661360 is about 2379.3612588256. The cubic root of 5661360 is about 178.2270384892.

It can be divided in two parts, 56 and 61360, that added together give a palindrome (61416).

The spelling of 5661360 in words is "five million, six hundred sixty-one thousand, three hundred sixty".