556020940 has 48 divisors (see below), whose sum is σ = 1247500800. Its totient is φ = 207548352.

The previous prime is 556020937. The next prime is 556020947. The reversal of 556020940 is 49020655.

It is not an unprimeable number, because it can be changed into a prime (556020947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14541 + ... + 36379.

It is an arithmetic number, because the mean of its divisors is an integer number (25989600).

Almost surely, 2^556020940 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 556020940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623750400).

556020940 is an abundant number, since it is smaller than the sum of its proper divisors (691479860).

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

556020940 is a wasteful number, since it uses less digits than its factorization.

556020940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21934 (or 21932 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 556020940 is about 23580.0962678272. The cubic root of 556020940 is about 822.3001747239.

The spelling of 556020940 in words is "five hundred fifty-six million, twenty thousand, nine hundred forty".