228768735 has 16 divisors (see below), whose sum is σ = 394186464. Its totient is φ = 112624512.

The previous prime is 228768731. The next prime is 228768739. The reversal of 228768735 is 537867822.

It is an interprime number because it is at equal distance from previous prime (228768731) and next prime (228768739).

It is not a de Polignac number, because 228768735 - 2² = 228768731 is a prime.

It is a super-2 number, since 2×228768735² = 104670268227000450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228768731) 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 15 ways as a sum of consecutive naturals, for example, 586392 + ... + 586781.

It is an arithmetic number, because the mean of its divisors is an integer number (24636654).

Almost surely, 2^228768735 is an apocalyptic number.

228768735 is a deficient number, since it is larger than the sum of its proper divisors (165417729).

228768735 is a wasteful number, since it uses less digits than its factorization.

228768735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173194.

The product of its digits is 1128960, while the sum is 48.

The square root of 228768735 is about 15125.1028095679. The cubic root of 228768735 is about 611.5972963753.

It can be divided in two parts, 228768 and 735, that added together give a triangular number (229503 = T₆₇₇).

The spelling of 228768735 in words is "two hundred twenty-eight million, seven hundred sixty-eight thousand, seven hundred thirty-five".