228718872 has 48 divisors (see below), whose sum is σ = 624349440. Its totient is φ = 75636288.

The previous prime is 228718817. The next prime is 228718879. The reversal of 228718872 is 278817822.

228718872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228718879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3363 + ... + 21650.

It is an arithmetic number, because the mean of its divisors is an integer number (13007280).

Almost surely, 2^228718872 is an apocalyptic number.

It is an amenable number.

228718872 is an abundant number, since it is smaller than the sum of its proper divisors (395630568).

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

228718872 is a wasteful number, since it uses less digits than its factorization.

228718872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25152 (or 25145 counting only the distinct ones).

The product of its digits is 200704, while the sum is 45.

The square root of 228718872 is about 15123.4543673064. The cubic root of 228718872 is about 611.5528580595.

The spelling of 228718872 in words is "two hundred twenty-eight million, seven hundred eighteen thousand, eight hundred seventy-two".