228516393 has 8 divisors (see below), whose sum is σ = 348215488. Its totient is φ = 130580784.

The previous prime is 228516389. The next prime is 228516419. The reversal of 228516393 is 393615822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228516393 - 2² = 228516389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228516313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5440846 + ... + 5440887.

It is an arithmetic number, because the mean of its divisors is an integer number (43526936).

Almost surely, 2^228516393 is an apocalyptic number.

It is an amenable number.

228516393 is a deficient number, since it is larger than the sum of its proper divisors (119699095).

228516393 is a wasteful number, since it uses less digits than its factorization.

228516393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10881743.

The product of its digits is 77760, while the sum is 39.

The square root of 228516393 is about 15116.7586803521. The cubic root of 228516393 is about 611.3723407163.

The spelling of 228516393 in words is "two hundred twenty-eight million, five hundred sixteen thousand, three hundred ninety-three".