228782434 has 4 divisors (see below), whose sum is σ = 343173654. Its totient is φ = 114391216.

The previous prime is 228782429. The next prime is 228782459. The reversal of 228782434 is 434287822.

It is a happy number.

228782434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 216001809 + 12780625 = 14697^2 + 3575^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57195607 + ... + 57195610.

Almost surely, 2^228782434 is an apocalyptic number.

228782434 is a deficient number, since it is larger than the sum of its proper divisors (114391220).

228782434 is a wasteful number, since it uses less digits than its factorization.

228782434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114391219.

The product of its digits is 172032, while the sum is 40.

The square root of 228782434 is about 15125.5556592146. Note that the first 3 decimals coincide. The cubic root of 228782434 is about 611.6095039061.

The spelling of 228782434 in words is "two hundred twenty-eight million, seven hundred eighty-two thousand, four hundred thirty-four".