618560 has 28 divisors (see below), whose sum is σ = 1473708. Its totient is φ = 247296.

The previous prime is 618559. The next prime is 618571. The reversal of 618560 is 65816.

It can be written as a sum of positive squares in 2 ways, for example, as 322624 + 295936 = 568^2 + 544^2 .

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, 647 + ... + 1286.

2⁶¹⁸⁵⁶⁰ is an apocalyptic number.

It is an amenable number.

618560 is an abundant number, since it is smaller than the sum of its proper divisors (855148).

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

618560 is a wasteful number, since it uses less digits than its factorization.

618560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950 (or 1940 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 618560 is about 786.4858549268. The cubic root of 618560 is about 85.2041230271.

The spelling of 618560 in words is "six hundred eighteen thousand, five hundred sixty".