228577445 has 8 divisors (see below), whose sum is σ = 274713120. Its totient is φ = 182581840.

The previous prime is 228577441. The next prime is 228577457. The reversal of 228577445 is 544775822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228577445 - 2² = 228577441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228577396 and 228577405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228577441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31391 + ... + 37980.

It is an arithmetic number, because the mean of its divisors is an integer number (34339140).

Almost surely, 2^228577445 is an apocalyptic number.

It is an amenable number.

228577445 is a deficient number, since it is larger than the sum of its proper divisors (46135675).

228577445 is an equidigital number, since it uses as much as digits as its factorization.

228577445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70035.

The product of its digits is 627200, while the sum is 44.

The square root of 228577445 is about 15118.7778937320. Note that the first 3 decimals coincide. The cubic root of 228577445 is about 611.4267820047.

The spelling of 228577445 in words is "two hundred twenty-eight million, five hundred seventy-seven thousand, four hundred forty-five".