228523826 has 8 divisors (see below), whose sum is σ = 362949660. Its totient is φ = 107540608.

The previous prime is 228523807. The next prime is 228523829. The reversal of 228523826 is 628325822.

It can be written as a sum of positive squares in 2 ways, for example, as 213306025 + 15217801 = 14605^2 + 3901^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 228523826.

It is not an unprimeable number, because it can be changed into a prime (228523829) 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, 3360611 + ... + 3360678.

Almost surely, 2^228523826 is an apocalyptic number.

228523826 is a deficient number, since it is larger than the sum of its proper divisors (134425834).

228523826 is a wasteful number, since it uses less digits than its factorization.

228523826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721308.

The product of its digits is 92160, while the sum is 38.

The square root of 228523826 is about 15117.0045313217. The cubic root of 228523826 is about 611.3789693893.

The spelling of 228523826 in words is "two hundred twenty-eight million, five hundred twenty-three thousand, eight hundred twenty-six".