228970215 has 12 divisors (see below), whose sum is σ = 396881784. Its totient is φ = 122117424.

The previous prime is 228970187. The next prime is 228970223. The reversal of 228970215 is 512079822.

It is not a de Polignac number, because 228970215 - 2⁶ = 228970151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228970215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2544069 + ... + 2544158.

It is an arithmetic number, because the mean of its divisors is an integer number (33073482).

Almost surely, 2^228970215 is an apocalyptic number.

228970215 is a deficient number, since it is larger than the sum of its proper divisors (167911569).

228970215 is a wasteful number, since it uses less digits than its factorization.

228970215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088238 (or 5088235 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 228970215 is about 15131.7617943186. The cubic root of 228970215 is about 611.7767912784.

The spelling of 228970215 in words is "two hundred twenty-eight million, nine hundred seventy thousand, two hundred fifteen".