228674688 has 128 divisors (see below), whose sum is σ = 678585600. Its totient is φ = 67630080.

The previous prime is 228674683. The next prime is 228674707. The reversal of 228674688 is 886476822.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×228674688² = 104584225863794688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228674688.

It is not an unprimeable number, because it can be changed into a prime (228674683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181003 + ... + 182261.

It is an arithmetic number, because the mean of its divisors is an integer number (5301450).

Almost surely, 2^228674688 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 228674688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339292800).

228674688 is an abundant number, since it is smaller than the sum of its proper divisors (449910912).

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

228674688 is a wasteful number, since it uses less digits than its factorization.

228674688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 1318 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The square root of 228674688 is about 15121.9935193744. The cubic root of 228674688 is about 611.5134755176.

The spelling of 228674688 in words is "two hundred twenty-eight million, six hundred seventy-four thousand, six hundred eighty-eight".