228145456 has 40 divisors (see below), whose sum is σ = 551107584. Its totient is φ = 88887360.

The previous prime is 228145451. The next prime is 228145459. The reversal of 228145456 is 654541822.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (228145451) 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 7 ways as a sum of consecutive naturals, for example, 91360 + ... + 93823.

Almost surely, 2^228145456 is an apocalyptic number.

It is an amenable number.

228145456 is an abundant number, since it is smaller than the sum of its proper divisors (322962128).

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

228145456 is a wasteful number, since it uses less digits than its factorization.

228145456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185209 (or 185203 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 228145456 is about 15104.4846320555. The cubic root of 228145456 is about 611.0413601738.

The spelling of 228145456 in words is "two hundred twenty-eight million, one hundred forty-five thousand, four hundred fifty-six".