228023020 has 12 divisors (see below), whose sum is σ = 478848384. Its totient is φ = 91209200.

The previous prime is 228022999. The next prime is 228023021. The reversal of 228023020 is 20320822.

It is not an unprimeable number, because it can be changed into a prime (228023021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5700556 + ... + 5700595.

It is an arithmetic number, because the mean of its divisors is an integer number (39904032).

Almost surely, 2^228023020 is an apocalyptic number.

228023020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228023020 is an abundant number, since it is smaller than the sum of its proper divisors (250825364).

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

228023020 is a wasteful number, since it uses less digits than its factorization.

228023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11401160 (or 11401158 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 228023020 is about 15100.4311196734. The cubic root of 228023020 is about 610.9320339449.

Adding to 228023020 its reverse (20320822), we get a palindrome (248343842).

The spelling of 228023020 in words is "two hundred twenty-eight million, twenty-three thousand, twenty".