228687604 has 36 divisors (see below), whose sum is σ = 429248484. Its totient is φ = 106236672.

The previous prime is 228687601. The next prime is 228687623. The reversal of 228687604 is 406786822.

It can be written as a sum of positive squares in 2 ways, for example, as 85932900 + 142754704 = 9270^2 + 11948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228687601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 721254 + ... + 721570.

It is an arithmetic number, because the mean of its divisors is an integer number (11923569).

Almost surely, 2^228687604 is an apocalyptic number.

It is an amenable number.

228687604 is a deficient number, since it is larger than the sum of its proper divisors (200560880).

228687604 is a wasteful number, since it uses less digits than its factorization.

228687604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 228687604 is about 15122.4205734400. The cubic root of 228687604 is about 611.5249884656.

The spelling of 228687604 in words is "two hundred twenty-eight million, six hundred eighty-seven thousand, six hundred four".