556671340 has 48 divisors (see below), whose sum is σ = 1211019264. Its totient is φ = 214718400.

The previous prime is 556671331. The next prime is 556671343. The reversal of 556671340 is 43176655.

It is a self number, because there is not a number n which added to its sum of digits gives 556671340.

It is not an unprimeable number, because it can be changed into a prime (556671343) 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, 191377 + ... + 194263.

It is an arithmetic number, because the mean of its divisors is an integer number (25229568).

Almost surely, 2^556671340 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 556671340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605509632).

556671340 is an abundant number, since it is smaller than the sum of its proper divisors (654347924).

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

556671340 is a wasteful number, since it uses less digits than its factorization.

556671340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238 (or 3236 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 556671340 is about 23593.8835294235. The cubic root of 556671340 is about 822.6206756232.

The spelling of 556671340 in words is "five hundred fifty-six million, six hundred seventy-one thousand, three hundred forty".