556743330 has 192 divisors, whose sum is σ = 1717148160. Its totient is φ = 123379200.

The previous prime is 556743307. The next prime is 556743331. The reversal of 556743330 is 33347655.

556743330 is a `hidden beast` number, since 556 + 74 + 3 + 3 + 30 = 666.

It is not an unprimeable number, because it can be changed into a prime (556743331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2329351 + ... + 2329589.

It is an arithmetic number, because the mean of its divisors is an integer number (8943480).

Almost surely, 2^556743330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556743330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858574080).

556743330 is an abundant number, since it is smaller than the sum of its proper divisors (1160404830).

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

556743330 is a wasteful number, since it uses less digits than its factorization.

556743330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 36.

The square root of 556743330 is about 23595.4090873627. The cubic root of 556743330 is about 822.6561351518.

The spelling of 556743330 in words is "five hundred fifty-six million, seven hundred forty-three thousand, three hundred thirty".