228135436 has 12 divisors (see below), whose sum is σ = 416595312. Its totient is φ = 109108208.

The previous prime is 228135419. The next prime is 228135437. The reversal of 228135436 is 634531822.

It is not an unprimeable number, because it can be changed into a prime (228135437) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1239775 + ... + 1239958.

It is an arithmetic number, because the mean of its divisors is an integer number (34716276).

Almost surely, 2^228135436 is an apocalyptic number.

It is an amenable number.

228135436 is a deficient number, since it is larger than the sum of its proper divisors (188459876).

228135436 is a wasteful number, since it uses less digits than its factorization.

228135436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479760 (or 2479758 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 228135436 is about 15104.1529388443. The cubic root of 228135436 is about 611.0324145298.

The spelling of 228135436 in words is "two hundred twenty-eight million, one hundred thirty-five thousand, four hundred thirty-six".