556746380 has 24 divisors (see below), whose sum is σ = 1197685440. Its totient is φ = 217266560.

The previous prime is 556746371. The next prime is 556746389. The reversal of 556746380 is 83647655.

It is an interprime number because it is at equal distance from previous prime (556746371) and next prime (556746389).

It is not an unprimeable number, because it can be changed into a prime (556746389) 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, 338660 + ... + 340299.

It is an arithmetic number, because the mean of its divisors is an integer number (49903560).

Almost surely, 2^556746380 is an apocalyptic number.

It is an amenable number.

556746380 is an abundant number, since it is smaller than the sum of its proper divisors (640939060).

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

556746380 is a wasteful number, since it uses less digits than its factorization.

556746380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679009 (or 679007 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 556746380 is about 23595.4737184910. The cubic root of 556746380 is about 822.6576373979.

The spelling of 556746380 in words is "five hundred fifty-six million, seven hundred forty-six thousand, three hundred eighty".