228455724 has 96 divisors (see below), whose sum is σ = 649797120. Its totient is φ = 60982272.

The previous prime is 228455719. The next prime is 228455743. The reversal of 228455724 is 427554822.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 223687 + ... + 224705.

It is an arithmetic number, because the mean of its divisors is an integer number (6768720).

Almost surely, 2^228455724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228455724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324898560).

228455724 is an abundant number, since it is smaller than the sum of its proper divisors (421341396).

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

228455724 is a wasteful number, since it uses less digits than its factorization.

228455724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1205 counting only the distinct ones).

The product of its digits is 179200, while the sum is 39.

The square root of 228455724 is about 15114.7518669676. The cubic root of 228455724 is about 611.3182313502.

The spelling of 228455724 in words is "two hundred twenty-eight million, four hundred fifty-five thousand, seven hundred twenty-four".