228427434 has 24 divisors (see below), whose sum is σ = 500032260. Its totient is φ = 75356928.

The previous prime is 228427417. The next prime is 228427447. The reversal of 228427434 is 434724822.

228427434 is a `hidden beast` number, since 228 + 427 + 4 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 216001809 + 12425625 = 14697^2 + 3525^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63669 + ... + 67160.

Almost surely, 2^228427434 is an apocalyptic number.

228427434 is an abundant number, since it is smaller than the sum of its proper divisors (271604826).

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

228427434 is a wasteful number, since it uses less digits than its factorization.

228427434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130934 (or 130931 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 228427434 is about 15113.8159972920. The cubic root of 228427434 is about 611.2929968374.

It can be divided in two parts, 22842 and 7434, that added together give a square (30276 = 174²).

The spelling of 228427434 in words is "two hundred twenty-eight million, four hundred twenty-seven thousand, four hundred thirty-four".