228637423 has 16 divisors (see below), whose sum is σ = 263830336. Its totient is φ = 194088960.

The previous prime is 228637417. The next prime is 228637427. The reversal of 228637423 is 324736822.

It is a cyclic number.

It is not a de Polignac number, because 228637423 - 2⁹ = 228636911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228637427) 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 15 ways as a sum of consecutive naturals, for example, 527815 + ... + 528247.

It is an arithmetic number, because the mean of its divisors is an integer number (16489396).

Almost surely, 2^228637423 is an apocalyptic number.

228637423 is a deficient number, since it is larger than the sum of its proper divisors (35192913).

228637423 is a wasteful number, since it uses less digits than its factorization.

228637423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994.

The product of its digits is 96768, while the sum is 37.

The square root of 228637423 is about 15120.7613234255. The cubic root of 228637423 is about 611.4802561470.

The spelling of 228637423 in words is "two hundred twenty-eight million, six hundred thirty-seven thousand, four hundred twenty-three".