228461215 has 8 divisors (see below), whose sum is σ = 290280240. Its totient is φ = 172017792.

The previous prime is 228461213. The next prime is 228461221. The reversal of 228461215 is 512164822.

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 228461215 - 2¹ = 228461213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228461213) 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, 1343805 + ... + 1343974.

It is an arithmetic number, because the mean of its divisors is an integer number (36285030).

Almost surely, 2^228461215 is an apocalyptic number.

228461215 is a deficient number, since it is larger than the sum of its proper divisors (61819025).

228461215 is a wasteful number, since it uses less digits than its factorization.

228461215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687801.

The product of its digits is 7680, while the sum is 31.

The square root of 228461215 is about 15114.9335096123. The cubic root of 228461215 is about 611.3231290483.

The spelling of 228461215 in words is "two hundred twenty-eight million, four hundred sixty-one thousand, two hundred fifteen".