228440234 has 16 divisors (see below), whose sum is σ = 376759296. Its totient is φ = 103017600.

The previous prime is 228440207. The next prime is 228440269. The reversal of 228440234 is 432044822.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 228440197 and 228440206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38087 + ... + 43674.

It is an arithmetic number, because the mean of its divisors is an integer number (23547456).

Almost surely, 2^228440234 is an apocalyptic number.

228440234 is a deficient number, since it is larger than the sum of its proper divisors (148319062).

228440234 is a wasteful number, since it uses less digits than its factorization.

228440234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81901.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 228440234 is about 15114.2394449737. The cubic root of 228440234 is about 611.3044146198.

The spelling of 228440234 in words is "two hundred twenty-eight million, four hundred forty thousand, two hundred thirty-four".