228450549 has 4 divisors (see below), whose sum is σ = 304600736. Its totient is φ = 152300364.

The previous prime is 228450533. The next prime is 228450553. The reversal of 228450549 is 945054822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 228450549 - 2⁴ = 228450533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228450589) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38075089 + ... + 38075094.

It is an arithmetic number, because the mean of its divisors is an integer number (76150184).

Almost surely, 2^228450549 is an apocalyptic number.

It is an amenable number.

228450549 is a deficient number, since it is larger than the sum of its proper divisors (76150187).

228450549 is an equidigital number, since it uses as much as digits as its factorization.

228450549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76150186.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 228450549 is about 15114.5806756258. The cubic root of 228450549 is about 611.3136154365.

The spelling of 228450549 in words is "two hundred twenty-eight million, four hundred fifty thousand, five hundred forty-nine".