228378148 has 12 divisors (see below), whose sum is σ = 399893760. Its totient is φ = 114122792.

The previous prime is 228378133. The next prime is 228378173. The reversal of 228378148 is 841873822.

It is a super-3 number, since 3×228378148³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8368 + ... + 22951.

It is an arithmetic number, because the mean of its divisors is an integer number (33324480).

Almost surely, 2^228378148 is an apocalyptic number.

It is an amenable number.

228378148 is a deficient number, since it is larger than the sum of its proper divisors (171515612).

228378148 is a wasteful number, since it uses less digits than its factorization.

228378148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33146 (or 33144 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 228378148 is about 15112.1854144263. The cubic root of 228378148 is about 611.2490290395.

The spelling of 228378148 in words is "two hundred twenty-eight million, three hundred seventy-eight thousand, one hundred forty-eight".