228524965 has 8 divisors (see below), whose sum is σ = 290361240. Its totient is φ = 172065792.

The previous prime is 228524957. The next prime is 228524969. The reversal of 228524965 is 569425822.

It can be written as a sum of positive squares in 4 ways, for example, as 13198689 + 215326276 = 3633^2 + 14674^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228524965 - 2³ = 228524957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228524969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344180 + ... + 1344349.

It is an arithmetic number, because the mean of its divisors is an integer number (36295155).

Almost surely, 2^228524965 is an apocalyptic number.

It is an amenable number.

228524965 is a deficient number, since it is larger than the sum of its proper divisors (61836275).

228524965 is a wasteful number, since it uses less digits than its factorization.

228524965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688551.

The product of its digits is 345600, while the sum is 43.

The square root of 228524965 is about 15117.0422040821. The cubic root of 228524965 is about 611.3799851251.

The spelling of 228524965 in words is "two hundred twenty-eight million, five hundred twenty-four thousand, nine hundred sixty-five".