229280256 has 60 divisors (see below), whose sum is σ = 661731642. Its totient is φ = 76425216.

The previous prime is 229280251. The next prime is 229280263. The reversal of 229280256 is 652082922.

It can be written as a sum of positive squares in only one way, i.e., 228614400 + 665856 = 15120^2 + 816^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 229280256.

It is not an unprimeable number, because it can be changed into a prime (229280251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20271 + ... + 29486.

Almost surely, 2^229280256 is an apocalyptic number.

It is an amenable number.

229280256 is an abundant number, since it is smaller than the sum of its proper divisors (432451386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229280256 is an equidigital number, since it uses as much as digits as its factorization.

229280256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49781 (or 49762 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 229280256 is about 15142.0030379075. The cubic root of 229280256 is about 612.0527956504.

The spelling of 229280256 in words is "two hundred twenty-nine million, two hundred eighty thousand, two hundred fifty-six".