228320435 has 32 divisors (see below), whose sum is σ = 330739200. Its totient is φ = 147813120.

The previous prime is 228320429. The next prime is 228320437. The reversal of 228320435 is 534023822.

It is not a de Polignac number, because 228320435 - 2⁴ = 228320419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228320398 and 228320407.

It is not an unprimeable number, because it can be changed into a prime (228320437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346136 + ... + 346794.

It is an arithmetic number, because the mean of its divisors is an integer number (10335600).

Almost surely, 2^228320435 is an apocalyptic number.

228320435 is a deficient number, since it is larger than the sum of its proper divisors (102418765).

228320435 is a wasteful number, since it uses less digits than its factorization.

228320435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 228320435 is about 15110.2758082042. The cubic root of 228320435 is about 611.1975355151.

The spelling of 228320435 in words is "two hundred twenty-eight million, three hundred twenty thousand, four hundred thirty-five".