228624263 has 4 divisors (see below), whose sum is σ = 261284880. Its totient is φ = 195963648.

The previous prime is 228624239. The next prime is 228624271. The reversal of 228624263 is 362426822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362426822 = 2 ⋅181213411.

It is a cyclic number.

It is not a de Polignac number, because 228624263 - 2¹² = 228620167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228624203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16330298 + ... + 16330311.

It is an arithmetic number, because the mean of its divisors is an integer number (65321220).

Almost surely, 2^228624263 is an apocalyptic number.

228624263 is a deficient number, since it is larger than the sum of its proper divisors (32660617).

228624263 is an equidigital number, since it uses as much as digits as its factorization.

228624263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32660616.

The product of its digits is 55296, while the sum is 35.

The square root of 228624263 is about 15120.3261538897. The cubic root of 228624263 is about 611.4685239840.

The spelling of 228624263 in words is "two hundred twenty-eight million, six hundred twenty-four thousand, two hundred sixty-three".