228145458 has 16 divisors (see below), whose sum is σ = 456502176. Its totient is φ = 76013280.

The previous prime is 228145451. The next prime is 228145459. The reversal of 228145458 is 854541822.

It is a happy number.

228145458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228145451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7585 + ... + 22667.

It is an arithmetic number, because the mean of its divisors is an integer number (28531386).

Almost surely, 2^228145458 is an apocalyptic number.

228145458 is an abundant number, since it is smaller than the sum of its proper divisors (228356718).

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

228145458 is a wasteful number, since it uses less digits than its factorization.

228145458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17609.

The product of its digits is 102400, while the sum is 39.

The square root of 228145458 is about 15104.4846982610. The cubic root of 228145458 is about 611.0413619593.

The spelling of 228145458 in words is "two hundred twenty-eight million, one hundred forty-five thousand, four hundred fifty-eight".