228495969 has 12 divisors (see below), whose sum is σ = 355438356. Its totient is φ = 140612832.

The previous prime is 228495941. The next prime is 228495977. The reversal of 228495969 is 969594822.

It is a happy number.

228495969 is a `hidden beast` number, since 2 + 2 + 8 + 49 + 596 + 9 = 666.

228495969 is digitally balanced in base 2, because in such base 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 124211025 + 104284944 = 11145^2 + 10212^2 .

It is not a de Polignac number, because 228495969 - 2²⁰ = 227447393 is a prime.

It is a super-2 number, since 2×228495969² = 104420815698497922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228491969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 976362 + ... + 976595.

It is an arithmetic number, because the mean of its divisors is an integer number (29619863).

Almost surely, 2^228495969 is an apocalyptic number.

It is an amenable number.

228495969 is a deficient number, since it is larger than the sum of its proper divisors (126942387).

228495969 is a wasteful number, since it uses less digits than its factorization.

228495969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952976 (or 1952973 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 228495969 is about 15116.0831236137. The cubic root of 228495969 is about 611.3541260629.

The spelling of 228495969 in words is "two hundred twenty-eight million, four hundred ninety-five thousand, nine hundred sixty-nine".