228145104 has 60 divisors (see below), whose sum is σ = 696538752. Its totient is φ = 69134400.

The previous prime is 228145091. The next prime is 228145111. The reversal of 228145104 is 401541822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70432 + ... + 73599.

Almost surely, 2^228145104 is an apocalyptic number.

228145104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228145104 is an abundant number, since it is smaller than the sum of its proper divisors (468393648).

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

228145104 is a wasteful number, since it uses less digits than its factorization.

228145104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144056 (or 144047 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 228145104 is about 15104.4729798825. The cubic root of 228145104 is about 611.0410459200.

Adding to 228145104 its reverse (401541822), we get a palindrome (629686926).

The spelling of 228145104 in words is "two hundred twenty-eight million, one hundred forty-five thousand, one hundred four".