228021704 has 16 divisors (see below), whose sum is σ = 430663500. Its totient is φ = 113178112.

The previous prime is 228021671. The next prime is 228021719. The reversal of 228021704 is 407120822.

It can be written as a sum of positive squares in 2 ways, for example, as 198753604 + 29268100 = 14098^2 + 5410^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102929 + ... + 105120.

Almost surely, 2^228021704 is an apocalyptic number.

It is an amenable number.

228021704 is a deficient number, since it is larger than the sum of its proper divisors (202641796).

228021704 is a wasteful number, since it uses less digits than its factorization.

228021704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208192 (or 208188 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 228021704 is about 15100.3875446957. The cubic root of 228021704 is about 610.9308586423.

The spelling of 228021704 in words is "two hundred twenty-eight million, twenty-one thousand, seven hundred four".