556446620 has 12 divisors (see below), whose sum is σ = 1168537944. Its totient is φ = 222578640.

The previous prime is 556446619. The next prime is 556446623. The reversal of 556446620 is 26644655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556446623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13911146 + ... + 13911185.

It is an arithmetic number, because the mean of its divisors is an integer number (97378162).

Almost surely, 2^556446620 is an apocalyptic number.

It is an amenable number.

556446620 is an abundant number, since it is smaller than the sum of its proper divisors (612091324).

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

556446620 is a wasteful number, since it uses less digits than its factorization.

556446620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27822340 (or 27822338 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 556446620 is about 23589.1207975202. The cubic root of 556446620 is about 822.5099674516.

The spelling of 556446620 in words is "five hundred fifty-six million, four hundred forty-six thousand, six hundred twenty".