228315409 has 8 divisors (see below), whose sum is σ = 261023360. Its totient is φ = 195630336.

The previous prime is 228315407. The next prime is 228315413. The reversal of 228315409 is 904513822.

228315409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 228315409 - 2¹ = 228315407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228315407) 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, 35377 + ... + 41329.

It is an arithmetic number, because the mean of its divisors is an integer number (32627920).

Almost surely, 2^228315409 is an apocalyptic number.

It is an amenable number.

228315409 is a deficient number, since it is larger than the sum of its proper divisors (32707951).

228315409 is an equidigital number, since it uses as much as digits as its factorization.

228315409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 228315409 is about 15110.1094966251. The cubic root of 228315409 is about 611.1930507343.

The spelling of 228315409 in words is "two hundred twenty-eight million, three hundred fifteen thousand, four hundred nine".