556838490 has 64 divisors (see below), whose sum is σ = 1452528000. Its totient is φ = 135800064.

The previous prime is 556838473. The next prime is 556838521. The reversal of 556838490 is 94838655.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35961 + ... + 49059.

It is an arithmetic number, because the mean of its divisors is an integer number (22695750).

Almost surely, 2^556838490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556838490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726264000).

556838490 is an abundant number, since it is smaller than the sum of its proper divisors (895689510).

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

556838490 is a wasteful number, since it uses less digits than its factorization.

556838490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13231.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 556838490 is about 23597.4254951679. The cubic root of 556838490 is about 822.7030026482.

The spelling of 556838490 in words is "five hundred fifty-six million, eight hundred thirty-eight thousand, four hundred ninety".