228739716 has 36 divisors (see below), whose sum is σ = 578873932. Its totient is φ = 76158144.

The previous prime is 228739703. The next prime is 228739717. The reversal of 228739716 is 617937822.

228739716 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 193098816 + 35640900 = 13896^2 + 5970^2 .

It is a tau number, because it is divible by the number of its divisors (36).

228739716 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (228739717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32706 + ... + 39078.

Almost surely, 2^228739716 is an apocalyptic number.

It is an amenable number.

228739716 is an abundant number, since it is smaller than the sum of its proper divisors (350134216).

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

228739716 is a wasteful number, since it uses less digits than its factorization.

228739716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380 (or 7375 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 228739716 is about 15124.1434798801. The cubic root of 228739716 is about 611.5714351893.

The spelling of 228739716 in words is "two hundred twenty-eight million, seven hundred thirty-nine thousand, seven hundred sixteen".