228675720 has 256 divisors, whose sum is σ = 865751040. Its totient is φ = 47029248.

The previous prime is 228675719. The next prime is 228675739. The reversal of 228675720 is 27576822.

228675720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 469317 + ... + 469803.

It is an arithmetic number, because the mean of its divisors is an integer number (3381840).

Almost surely, 2^228675720 is an apocalyptic number.

228675720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228675720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432875520).

228675720 is an abundant number, since it is smaller than the sum of its proper divisors (637075320).

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

228675720 is a wasteful number, since it uses less digits than its factorization.

228675720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 228675720 is about 15122.0276418211. The cubic root of 228675720 is about 611.5143954284.

The spelling of 228675720 in words is "two hundred twenty-eight million, six hundred seventy-five thousand, seven hundred twenty".