556509340 has 24 divisors (see below), whose sum is σ = 1172993472. Its totient is φ = 221780160.

The previous prime is 556509337. The next prime is 556509347. The reversal of 556509340 is 43905655.

It is a self number, because there is not a number n which added to its sum of digits gives 556509340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556509347) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45919 + ... + 56758.

It is an arithmetic number, because the mean of its divisors is an integer number (48874728).

Almost surely, 2^556509340 is an apocalyptic number.

It is an amenable number.

556509340 is an abundant number, since it is smaller than the sum of its proper divisors (616484132).

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

556509340 is a wasteful number, since it uses less digits than its factorization.

556509340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102957 (or 102955 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 556509340 is about 23590.4501864632. The cubic root of 556509340 is about 822.5408694196.

The spelling of 556509340 in words is "five hundred fifty-six million, five hundred nine thousand, three hundred forty".