228910775 has 12 divisors (see below), whose sum is σ = 293638200. Its totient is φ = 176813280.

The previous prime is 228910757. The next prime is 228910777. The reversal of 228910775 is 577019822.

It is not a de Polignac number, because 228910775 - 2⁶ = 228910711 is a prime.

It is a super-2 number, since 2×228910775² = 104800285822201250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228910777) 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 11 ways as a sum of consecutive naturals, for example, 157145 + ... + 158594.

It is an arithmetic number, because the mean of its divisors is an integer number (24469850).

Almost surely, 2^228910775 is an apocalyptic number.

228910775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228910775 is a deficient number, since it is larger than the sum of its proper divisors (64727425).

228910775 is a wasteful number, since it uses less digits than its factorization.

228910775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315778 (or 315773 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 228910775 is about 15129.7975862204. The cubic root of 228910775 is about 611.7238482066.

The spelling of 228910775 in words is "two hundred twenty-eight million, nine hundred ten thousand, seven hundred seventy-five".