228056646 has 16 divisors (see below), whose sum is σ = 470827008. Its totient is φ = 73566600.

The previous prime is 228056627. The next prime is 228056663. The reversal of 228056646 is 646650822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612870 + ... + 613241.

It is an arithmetic number, because the mean of its divisors is an integer number (29426688).

Almost surely, 2^228056646 is an apocalyptic number.

228056646 is an abundant number, since it is smaller than the sum of its proper divisors (242770362).

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

228056646 is a wasteful number, since it uses less digits than its factorization.

228056646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226147.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 228056646 is about 15101.5444905480. The cubic root of 228056646 is about 610.9620633557.

The spelling of 228056646 in words is "two hundred twenty-eight million, fifty-six thousand, six hundred forty-six".