228522723 has 16 divisors (see below), whose sum is σ = 357966336. Its totient is φ = 127844640.

The previous prime is 228522703. The next prime is 228522727. The reversal of 228522723 is 327225822.

It is a happy number.

It is not a de Polignac number, because 228522723 - 2⁵ = 228522691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (228522727) 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, 265915 + ... + 266772.

It is an arithmetic number, because the mean of its divisors is an integer number (22372896).

Almost surely, 2^228522723 is an apocalyptic number.

228522723 is a deficient number, since it is larger than the sum of its proper divisors (129443613).

228522723 is a wasteful number, since it uses less digits than its factorization.

228522723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532714.

The product of its digits is 26880, while the sum is 33.

The square root of 228522723 is about 15116.9680491823. The cubic root of 228522723 is about 611.3779857543.

The spelling of 228522723 in words is "two hundred twenty-eight million, five hundred twenty-two thousand, seven hundred twenty-three".