228743823 has 64 divisors (see below), whose sum is σ = 415825920. Its totient is φ = 108172800.

The previous prime is 228743791. The next prime is 228743833. The reversal of 228743823 is 328347822.

It is not a de Polignac number, because 228743823 - 2⁵ = 228743791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228743833) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 120798 + ... + 122676.

It is an arithmetic number, because the mean of its divisors is an integer number (6497280).

Almost surely, 2^228743823 is an apocalyptic number.

228743823 is a deficient number, since it is larger than the sum of its proper divisors (187082097).

228743823 is a wasteful number, since it uses less digits than its factorization.

228743823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948.

The product of its digits is 129024, while the sum is 39.

The square root of 228743823 is about 15124.2792555546. The cubic root of 228743823 is about 611.5750954032.

The spelling of 228743823 in words is "two hundred twenty-eight million, seven hundred forty-three thousand, eight hundred twenty-three".