228201272 has 16 divisors (see below), whose sum is σ = 460791240. Its totient is φ = 105323616.

The previous prime is 228201271. The next prime is 228201277. The reversal of 228201272 is 272102822.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228201271) by changing a digit.

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, 1097018 + ... + 1097225.

Almost surely, 2^228201272 is an apocalyptic number.

It is an amenable number.

228201272 is an abundant number, since it is smaller than the sum of its proper divisors (232589968).

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

228201272 is a wasteful number, since it uses less digits than its factorization.

228201272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194262 (or 2194258 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 228201272 is about 15106.3321822340. The cubic root of 228201272 is about 611.0911867248.

The spelling of 228201272 in words is "two hundred twenty-eight million, two hundred one thousand, two hundred seventy-two".