228575049 has 4 divisors (see below), whose sum is σ = 304766736. Its totient is φ = 152383364.

The previous prime is 228575023. The next prime is 228575093. The reversal of 228575049 is 940575822.

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 a cyclic number.

It is not a de Polignac number, because 228575049 - 2¹⁶ = 228509513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228575049.

It is not an unprimeable number, because it can be changed into a prime (228575099) 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, 38095839 + ... + 38095844.

It is an arithmetic number, because the mean of its divisors is an integer number (76191684).

Almost surely, 2^228575049 is an apocalyptic number.

It is an amenable number.

228575049 is a deficient number, since it is larger than the sum of its proper divisors (76191687).

228575049 is an equidigital number, since it uses as much as digits as its factorization.

228575049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76191686.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 228575049 is about 15118.6986543155. The cubic root of 228575049 is about 611.4246456264.

The spelling of 228575049 in words is "two hundred twenty-eight million, five hundred seventy-five thousand, forty-nine".