228466215 has 24 divisors (see below), whose sum is σ = 400785840. Its totient is φ = 120378624.

The previous prime is 228466211. The next prime is 228466223. The reversal of 228466215 is 512664822.

It is a happy number.

228466215 is a `hidden beast` number, since 2 + 28 + 4 + 6 + 621 + 5 = 666.

It is not a de Polignac number, because 228466215 - 2² = 228466211 is a prime.

It is a super-2 number, since 2×228466215² = 104393622792852450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228466215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228466211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26850 + ... + 34319.

It is an arithmetic number, because the mean of its divisors is an integer number (16699410).

Almost surely, 2^228466215 is an apocalyptic number.

228466215 is a deficient number, since it is larger than the sum of its proper divisors (172319625).

228466215 is a wasteful number, since it uses less digits than its factorization.

228466215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61263 (or 61260 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 228466215 is about 15115.0989080456. The cubic root of 228466215 is about 611.3275887307.

The spelling of 228466215 in words is "two hundred twenty-eight million, four hundred sixty-six thousand, two hundred fifteen".