228361569 has 8 divisors (see below), whose sum is σ = 304676640. Its totient is φ = 152143776.

The previous prime is 228361559. The next prime is 228361591. The reversal of 228361569 is 965163822.

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

It is not a de Polignac number, because 228361569 - 2²⁴ = 211584353 is a prime.

It is a super-2 number, since 2×228361569² = 104298012392283522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228361569.

It is not an unprimeable number, because it can be changed into a prime (228361559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18652 + ... + 28365.

It is an arithmetic number, because the mean of its divisors is an integer number (38084580).

Almost surely, 2^228361569 is an apocalyptic number.

It is an amenable number.

228361569 is a deficient number, since it is larger than the sum of its proper divisors (76315071).

228361569 is a wasteful number, since it uses less digits than its factorization.

228361569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48639.

The product of its digits is 155520, while the sum is 42.

The square root of 228361569 is about 15111.6368736150. The cubic root of 228361569 is about 611.2342375735.

The spelling of 228361569 in words is "two hundred twenty-eight million, three hundred sixty-one thousand, five hundred sixty-nine".