556005440 has 28 divisors (see below), whose sum is σ = 1323988716. Its totient is φ = 222402048.

The previous prime is 556005431. The next prime is 556005497. The reversal of 556005440 is 44500655.

It can be written as a sum of positive squares in 2 ways, for example, as 174662656 + 381342784 = 13216^2 + 19528^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 868439 + ... + 869078.

Almost surely, 2^556005440 is an apocalyptic number.

It is an amenable number.

556005440 is an abundant number, since it is smaller than the sum of its proper divisors (767983276).

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

556005440 is a wasteful number, since it uses less digits than its factorization.

556005440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737534 (or 1737524 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 556005440 is about 23579.7675985155. The cubic root of 556005440 is about 822.2925336620.

The spelling of 556005440 in words is "five hundred fifty-six million, five thousand, four hundred forty".