556400586 has 96 divisors (see below), whose sum is σ = 1369751040. Its totient is φ = 149990400.

The previous prime is 556400573. The next prime is 556400597. The reversal of 556400586 is 685004655.

It is a super-2 number, since 2×556400586² = 619163224202286792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 372930 + ... + 374418.

It is an arithmetic number, because the mean of its divisors is an integer number (14268240).

Almost surely, 2^556400586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556400586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684875520).

556400586 is an abundant number, since it is smaller than the sum of its proper divisors (813350454).

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

556400586 is a wasteful number, since it uses less digits than its factorization.

556400586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 556400586 is about 23588.1450309260. The cubic root of 556400586 is about 822.4872851513.

The spelling of 556400586 in words is "five hundred fifty-six million, four hundred thousand, five hundred eighty-six".