228144724 has 12 divisors (see below), whose sum is σ = 399924000. Its totient is φ = 113880728.

The previous prime is 228144703. The next prime is 228144727. The reversal of 228144724 is 427441822.

228144724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 228144724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45214 + ... + 50005.

It is an arithmetic number, because the mean of its divisors is an integer number (33327000).

Almost surely, 2^228144724 is an apocalyptic number.

It is an amenable number.

228144724 is a deficient number, since it is larger than the sum of its proper divisors (171779276).

228144724 is a wasteful number, since it uses less digits than its factorization.

228144724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95822 (or 95820 counting only the distinct ones).

The product of its digits is 28672, while the sum is 34.

The square root of 228144724 is about 15104.4604008220. The cubic root of 228144724 is about 611.0407066685.

The spelling of 228144724 in words is "two hundred twenty-eight million, one hundred forty-four thousand, seven hundred twenty-four".