228478452 has 24 divisors (see below), whose sum is σ = 533391936. Its totient is φ = 76120128.

The previous prime is 228478427. The next prime is 228478457. The reversal of 228478452 is 254874822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228478457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28168 + ... + 35360.

It is an arithmetic number, because the mean of its divisors is an integer number (22224664).

Almost surely, 2^228478452 is an apocalyptic number.

It is an amenable number.

228478452 is an abundant number, since it is smaller than the sum of its proper divisors (304913484).

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

228478452 is a wasteful number, since it uses less digits than its factorization.

228478452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9847 (or 9845 counting only the distinct ones).

The product of its digits is 286720, while the sum is 42.

The square root of 228478452 is about 15115.5036965362. The cubic root of 228478452 is about 611.3385030828.

The spelling of 228478452 in words is "two hundred twenty-eight million, four hundred seventy-eight thousand, four hundred fifty-two".