228056445 has 32 divisors (see below), whose sum is σ = 429287040. Its totient is φ = 114474240.

The previous prime is 228056407. The next prime is 228056447. The reversal of 228056445 is 544650822.

It is a happy number.

228056445 is a `hidden beast` number, since 2 + 2 + 8 + 0 + 5 + 644 + 5 = 666.

It is not a de Polignac number, because 228056445 - 2¹³ = 228048253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228056447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47391 + ... + 51980.

It is an arithmetic number, because the mean of its divisors is an integer number (13415220).

Almost surely, 2^228056445 is an apocalyptic number.

It is an amenable number.

228056445 is a deficient number, since it is larger than the sum of its proper divisors (201230595).

228056445 is a wasteful number, since it uses less digits than its factorization.

228056445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99402 (or 99396 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 228056445 is about 15101.5378355981. The cubic root of 228056445 is about 610.9618838631.

The spelling of 228056445 in words is "two hundred twenty-eight million, fifty-six thousand, four hundred forty-five".