556630344 has 48 divisors (see below), whose sum is σ = 1528787520. Its totient is φ = 182928480.

The previous prime is 556630279. The next prime is 556630357. The reversal of 556630344 is 443036655.

556630344 is a `hidden beast` number, since 556 + 63 + 0 + 3 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 556630299 and 556630308.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49332 + ... + 59555.

It is an arithmetic number, because the mean of its divisors is an integer number (31849740).

Almost surely, 2^556630344 is an apocalyptic number.

It is an amenable number.

556630344 is an abundant number, since it is smaller than the sum of its proper divisors (972157176).

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

556630344 is a wasteful number, since it uses less digits than its factorization.

556630344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108970 (or 108963 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 556630344 is about 23593.0147289404. The cubic root of 556630344 is about 822.6004811909.

Adding to 556630344 its reverse (443036655), we get a palindrome (999666999).

The spelling of 556630344 in words is "five hundred fifty-six million, six hundred thirty thousand, three hundred forty-four".