228120024 has 32 divisors (see below), whose sum is σ = 622146240. Its totient is φ = 69127200.

The previous prime is 228120007. The next prime is 228120029. The reversal of 228120024 is 420021822.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228120029) 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, 431782 + ... + 432309.

It is an arithmetic number, because the mean of its divisors is an integer number (19442070).

Almost surely, 2^228120024 is an apocalyptic number.

228120024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228120024 is an abundant number, since it is smaller than the sum of its proper divisors (394026216).

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

228120024 is a wasteful number, since it uses less digits than its factorization.

228120024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864111 (or 864107 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 228120024 is about 15103.6427394189. The cubic root of 228120024 is about 611.0186545110.

Adding to 228120024 its reverse (420021822), we get a palindrome (648141846).

The spelling of 228120024 in words is "two hundred twenty-eight million, one hundred twenty thousand, twenty-four".