228427808 has 36 divisors (see below), whose sum is σ = 523144062. Its totient is φ = 97896960.

The previous prime is 228427741. The next prime is 228427819. The reversal of 228427808 is 808724822.

It can be written as a sum of positive squares in only one way, i.e., 227768464 + 659344 = 15092^2 + 812^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71273 + ... + 74408.

Almost surely, 2^228427808 is an apocalyptic number.

228427808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228427808 is an abundant number, since it is smaller than the sum of its proper divisors (294716254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228427808 is a wasteful number, since it uses less digits than its factorization.

228427808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145705 (or 145690 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 41.

The square root of 228427808 is about 15113.8283700722. The cubic root of 228427808 is about 611.2933304568.

The spelling of 228427808 in words is "two hundred twenty-eight million, four hundred twenty-seven thousand, eight hundred eight".