616220 has 24 divisors (see below), whose sum is σ = 1412208. Its totient is φ = 224000.

The previous prime is 616219. The next prime is 616223. The reversal of 616220 is 22616.

616220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 616220.

It is not an unprimeable number, because it can be changed into a prime (616223) 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, 1181 + ... + 1620.

It is an arithmetic number, because the mean of its divisors is an integer number (58842).

2⁶¹⁶²²⁰ is an apocalyptic number.

It is an amenable number.

616220 is an abundant number, since it is smaller than the sum of its proper divisors (795988).

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

616220 is a wasteful number, since it uses less digits than its factorization.

616220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 616220 is about 784.9968152802. The cubic root of 616220 is about 85.0965454321.

Adding to 616220 its reverse (22616), we get a palindrome (638836).

The spelling of 616220 in words is "six hundred sixteen thousand, two hundred twenty".