228238799 has 2 divisors, whose sum is σ = 228238800. Its totient is φ = 228238798.

The previous prime is 228238781. The next prime is 228238861. The reversal of 228238799 is 997832822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228238799 - 2¹² = 228234703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228238999) 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 as a sum of consecutive naturals, namely, 114119399 + 114119400.

It is an arithmetic number, because the mean of its divisors is an integer number (114119400).

Almost surely, 2^228238799 is an apocalyptic number.

228238799 is a deficient number, since it is larger than the sum of its proper divisors (1).

228238799 is an equidigital number, since it uses as much as digits as its factorization.

228238799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 228238799 is about 15107.5742261953. The cubic root of 228238799 is about 611.1246822465.

The spelling of 228238799 in words is "two hundred twenty-eight million, two hundred thirty-eight thousand, seven hundred ninety-nine".