228613293 has 16 divisors (see below), whose sum is σ = 350366400. Its totient is φ = 147152880.

The previous prime is 228613283. The next prime is 228613303. The reversal of 228613293 is 392316822.

228613293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228613283) and next prime (228613303).

It is not a de Polignac number, because 228613293 - 2⁴ = 228613277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228613283) 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, 145203 + ... + 146768.

It is an arithmetic number, because the mean of its divisors is an integer number (21897900).

Almost surely, 2^228613293 is an apocalyptic number.

It is an amenable number.

228613293 is a deficient number, since it is larger than the sum of its proper divisors (121753107).

228613293 is a wasteful number, since it uses less digits than its factorization.

228613293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292009 (or 292003 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 228613293 is about 15119.9633928128. The cubic root of 228613293 is about 611.4587438657.

The spelling of 228613293 in words is "two hundred twenty-eight million, six hundred thirteen thousand, two hundred ninety-three".