228975746 has 4 divisors (see below), whose sum is σ = 343463622. Its totient is φ = 114487872.

The previous prime is 228975739. The next prime is 228975751. The reversal of 228975746 is 647579822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 224670121 + 4305625 = 14989^2 + 2075^2 .

It is a junction number, because it is equal to n+sod(n) for n = 228975694 and 228975703.

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 as a sum of consecutive naturals, namely, 57243935 + ... + 57243938.

Almost surely, 2^228975746 is an apocalyptic number.

228975746 is a deficient number, since it is larger than the sum of its proper divisors (114487876).

228975746 is a wasteful number, since it uses less digits than its factorization.

228975746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114487875.

The product of its digits is 1693440, while the sum is 50.

The square root of 228975746 is about 15131.9445544847. The cubic root of 228975746 is about 611.7817172614.

The spelling of 228975746 in words is "two hundred twenty-eight million, nine hundred seventy-five thousand, seven hundred forty-six".