228429265 has 8 divisors (see below), whose sum is σ = 274377960. Its totient is φ = 182568192.

The previous prime is 228429263. The next prime is 228429347. The reversal of 228429265 is 562924822.

It can be written as a sum of positive squares in 4 ways, for example, as 38651089 + 189778176 = 6217^2 + 13776^2 .

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 228429265 - 2¹ = 228429263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228429263) 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, 16024 + ... + 26713.

It is an arithmetic number, because the mean of its divisors is an integer number (34297245).

Almost surely, 2^228429265 is an apocalyptic number.

It is an amenable number.

228429265 is a deficient number, since it is larger than the sum of its proper divisors (45948695).

228429265 is a wasteful number, since it uses less digits than its factorization.

228429265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43811.

The product of its digits is 138240, while the sum is 40.

The square root of 228429265 is about 15113.8765708868. The cubic root of 228429265 is about 611.2946301417.

The spelling of 228429265 in words is "two hundred twenty-eight million, four hundred twenty-nine thousand, two hundred sixty-five".