228473265 has 16 divisors (see below), whose sum is σ = 368913600. Its totient is φ = 120733632.

The previous prime is 228473239. The next prime is 228473321. The reversal of 228473265 is 562374822.

It is not a de Polignac number, because 228473265 - 2⁹ = 228472753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68235 + ... + 71504.

It is an arithmetic number, because the mean of its divisors is an integer number (23057100).

Almost surely, 2^228473265 is an apocalyptic number.

It is an amenable number.

228473265 is a deficient number, since it is larger than the sum of its proper divisors (140440335).

228473265 is a wasteful number, since it uses less digits than its factorization.

228473265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139856.

The product of its digits is 161280, while the sum is 39.

The square root of 228473265 is about 15115.3321167614. The cubic root of 228473265 is about 611.3338767723. Note that the first 3 decimals are identical.

The spelling of 228473265 in words is "two hundred twenty-eight million, four hundred seventy-three thousand, two hundred sixty-five".