616140 has 96 divisors (see below), whose sum is σ = 2204160. Its totient is φ = 139968.

The previous prime is 616139. The next prime is 616141. The reversal of 616140 is 41616.

616140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (616139) and next prime (616141).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (616141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3699 + ... + 3861.

It is an arithmetic number, because the mean of its divisors is an integer number (22960).

2⁶¹⁶¹⁴⁰ is an apocalyptic number.

616140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1102080).

616140 is an abundant number, since it is smaller than the sum of its proper divisors (1588020).

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

616140 is a wasteful number, since it uses less digits than its factorization.

616140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 616140 is about 784.9458580055. The cubic root of 616140 is about 85.0928627547.

Adding to 616140 its reverse (41616), we get a palindrome (657756).

The spelling of 616140 in words is "six hundred sixteen thousand, one hundred forty".