228057033 has 4 divisors (see below), whose sum is σ = 304076048. Its totient is φ = 152038020.

The previous prime is 228057013. The next prime is 228057043. The reversal of 228057033 is 330750822.

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 228057033 - 2⁵ = 228057001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228057013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38009503 + ... + 38009508.

It is an arithmetic number, because the mean of its divisors is an integer number (76019012).

Almost surely, 2^228057033 is an apocalyptic number.

It is an amenable number.

228057033 is a deficient number, since it is larger than the sum of its proper divisors (76019015).

228057033 is an equidigital number, since it uses as much as digits as its factorization.

228057033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76019014.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 228057033 is about 15101.5573038015. The cubic root of 228057033 is about 610.9624089455.

The spelling of 228057033 in words is "two hundred twenty-eight million, fifty-seven thousand, thirty-three".