228163452 has 24 divisors (see below), whose sum is σ = 580780032. Its totient is φ = 69140400.

The previous prime is 228163451. The next prime is 228163469. The reversal of 228163452 is 254361822.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228163451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864124 + ... + 864387.

It is an arithmetic number, because the mean of its divisors is an integer number (24199168).

Almost surely, 2^228163452 is an apocalyptic number.

228163452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

228163452 is an abundant number, since it is smaller than the sum of its proper divisors (352616580).

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

228163452 is a wasteful number, since it uses less digits than its factorization.

228163452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728529 (or 1728527 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 228163452 is about 15105.0803374229. The cubic root of 228163452 is about 611.0574259641.

The spelling of 228163452 in words is "two hundred twenty-eight million, one hundred sixty-three thousand, four hundred fifty-two".