228144399 has 16 divisors (see below), whose sum is σ = 347980800. Its totient is φ = 130243680.

The previous prime is 228144359. The next prime is 228144409. The reversal of 228144399 is 993441822.

It is not a de Polignac number, because 228144399 - 2¹⁹ = 227620111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228144399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20202 + ... + 29400.

It is an arithmetic number, because the mean of its divisors is an integer number (21748800).

Almost surely, 2^228144399 is an apocalyptic number.

228144399 is a deficient number, since it is larger than the sum of its proper divisors (119836401).

228144399 is a wasteful number, since it uses less digits than its factorization.

228144399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10390.

The product of its digits is 124416, while the sum is 42.

The square root of 228144399 is about 15104.4496424067. The cubic root of 228144399 is about 611.0404165189.

The spelling of 228144399 in words is "two hundred twenty-eight million, one hundred forty-four thousand, three hundred ninety-nine".