228873312 has 72 divisors (see below), whose sum is σ = 689159016. Its totient is φ = 71801856.

The previous prime is 228873301. The next prime is 228873317. The reversal of 228873312 is 213378822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228873317) 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 11 ways as a sum of consecutive naturals, for example, 18478 + ... + 28269.

It is an arithmetic number, because the mean of its divisors is an integer number (9571653).

Almost surely, 2^228873312 is an apocalyptic number.

It is an amenable number.

228873312 is an abundant number, since it is smaller than the sum of its proper divisors (460285704).

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

228873312 is a wasteful number, since it uses less digits than its factorization.

228873312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46780 (or 46769 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 228873312 is about 15128.5594819864. The cubic root of 228873312 is about 611.6904752897.

The spelling of 228873312 in words is "two hundred twenty-eight million, eight hundred seventy-three thousand, three hundred twelve".