228506718 has 64 divisors (see below), whose sum is σ = 518814720. Its totient is φ = 66460800.

The previous prime is 228506713. The next prime is 228506737. The reversal of 228506718 is 817605822.

It is a super-2 number, since 2×228506718² = 104430640342263048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228506713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 529963 + ... + 530393.

It is an arithmetic number, because the mean of its divisors is an integer number (8106480).

Almost surely, 2^228506718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228506718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259407360).

228506718 is an abundant number, since it is smaller than the sum of its proper divisors (290308002).

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

228506718 is a wasteful number, since it uses less digits than its factorization.

228506718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 228506718 is about 15116.4386678874. The cubic root of 228506718 is about 611.3637124354.

The spelling of 228506718 in words is "two hundred twenty-eight million, five hundred six thousand, seven hundred eighteen".