228545049 has 4 divisors (see below), whose sum is σ = 304726736. Its totient is φ = 152363364.

The previous prime is 228545033. The next prime is 228545117. The reversal of 228545049 is 940545822.

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 228545049 - 2⁴ = 228545033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228544998 and 228545016.

It is not an unprimeable number, because it can be changed into a prime (228545249) 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, 38090839 + ... + 38090844.

It is an arithmetic number, because the mean of its divisors is an integer number (76181684).

Almost surely, 2^228545049 is an apocalyptic number.

It is an amenable number.

228545049 is a deficient number, since it is larger than the sum of its proper divisors (76181687).

228545049 is an equidigital number, since it uses as much as digits as its factorization.

228545049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76181686.

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

The square root of 228545049 is about 15117.7064728748. The cubic root of 228545049 is about 611.3978950515.

The spelling of 228545049 in words is "two hundred twenty-eight million, five hundred forty-five thousand, forty-nine".