556140 has 96 divisors (see below), whose sum is σ = 1806336. Its totient is φ = 126720.

The previous prime is 556123. The next prime is 556159. The reversal of 556140 is 41655.

It is a happy number.

556140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17925 + ... + 17955.

It is an arithmetic number, because the mean of its divisors is an integer number (18816).

2⁵⁵⁶¹⁴⁰ 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 556140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903168).

556140 is an abundant number, since it is smaller than the sum of its proper divisors (1250196).

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

556140 is a wasteful number, since it uses less digits than its factorization.

556140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 556140 is about 745.7479466951. The cubic root of 556140 is about 82.2358863204.

Adding to 556140 its reverse (41655), we get a palindrome (597795).

It can be divided in two parts, 556 and 140, that added together give a palindrome (696).

The spelling of 556140 in words is "five hundred fifty-six thousand, one hundred forty".