228715776 has 108 divisors (see below), whose sum is σ = 672245028. Its totient is φ = 74760192.

The previous prime is 228715741. The next prime is 228715777. The reversal of 228715776 is 677517822.

228715776 is a `hidden beast` number, since 2 + 2 + 8 + 71 + 577 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70560000 + 158155776 = 8400^2 + 12576^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228715777) 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, 121176 + ... + 123048.

It is an arithmetic number, because the mean of its divisors is an integer number (6224491).

Almost surely, 2^228715776 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 228715776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336122514).

228715776 is an abundant number, since it is smaller than the sum of its proper divisors (443529252).

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

228715776 is a wasteful number, since it uses less digits than its factorization.

228715776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1931 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 228715776 is about 15123.3520093926. The cubic root of 228715776 is about 611.5500986658.

The spelling of 228715776 in words is "two hundred twenty-eight million, seven hundred fifteen thousand, seven hundred seventy-six".