228649508 has 12 divisors (see below), whose sum is σ = 400463280. Its totient is φ = 114231432.

The previous prime is 228649489. The next prime is 228649537. The reversal of 228649508 is 805946822.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17666 + ... + 27737.

It is an arithmetic number, because the mean of its divisors is an integer number (33371940).

Almost surely, 2^228649508 is an apocalyptic number.

It is an amenable number.

228649508 is a deficient number, since it is larger than the sum of its proper divisors (171813772).

228649508 is a wasteful number, since it uses less digits than its factorization.

228649508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46666 (or 46664 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 228649508 is about 15121.1609342669. The cubic root of 228649508 is about 611.4910295491.

The spelling of 228649508 in words is "two hundred twenty-eight million, six hundred forty-nine thousand, five hundred eight".