228353505 has 8 divisors (see below), whose sum is σ = 365365632. Its totient is φ = 121788528.

The previous prime is 228353483. The next prime is 228353527. The reversal of 228353505 is 505353822.

It is an interprime number because it is at equal distance from previous prime (228353483) and next prime (228353527).

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

It is not a de Polignac number, because 228353505 - 2⁵ = 228353473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7611769 + ... + 7611798.

It is an arithmetic number, because the mean of its divisors is an integer number (45670704).

Almost surely, 2^228353505 is an apocalyptic number.

It is an amenable number.

228353505 is a deficient number, since it is larger than the sum of its proper divisors (137012127).

228353505 is a wasteful number, since it uses less digits than its factorization.

228353505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15223575.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 228353505 is about 15111.3700570134. The cubic root of 228353505 is about 611.2270427684.

The spelling of 228353505 in words is "two hundred twenty-eight million, three hundred fifty-three thousand, five hundred five".