228045965 has 32 divisors (see below), whose sum is σ = 319666176. Its totient is φ = 152953920.

The previous prime is 228045959. The next prime is 228045967. The reversal of 228045965 is 569540822.

It is not a de Polignac number, because 228045965 - 2¹⁰ = 228044941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228045967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404774 + ... + 405336.

It is an arithmetic number, because the mean of its divisors is an integer number (9989568).

Almost surely, 2^228045965 is an apocalyptic number.

It is an amenable number.

228045965 is a deficient number, since it is larger than the sum of its proper divisors (91620211).

228045965 is a wasteful number, since it uses less digits than its factorization.

228045965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 228045965 is about 15101.1908470822. The cubic root of 228045965 is about 610.9525251002.

The spelling of 228045965 in words is "two hundred twenty-eight million, forty-five thousand, nine hundred sixty-five".