228711672 has 96 divisors (see below), whose sum is σ = 715085280. Its totient is φ = 64684800.

The previous prime is 228711667. The next prime is 228711673. The reversal of 228711672 is 276117822.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228711673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48658 + ... + 53150.

It is an arithmetic number, because the mean of its divisors is an integer number (7448805).

Almost surely, 2^228711672 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 228711672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357542640).

228711672 is an abundant number, since it is smaller than the sum of its proper divisors (486373608).

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

228711672 is a wasteful number, since it uses less digits than its factorization.

228711672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613 (or 4606 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 228711672 is about 15123.2163245786. The cubic root of 228711672 is about 611.5464408266.

The spelling of 228711672 in words is "two hundred twenty-eight million, seven hundred eleven thousand, six hundred seventy-two".