228432839 has 8 divisors (see below), whose sum is σ = 240666240. Its totient is φ = 216220536.

The previous prime is 228432793. The next prime is 228432847. The reversal of 228432839 is 938234822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228432839 - 2¹² = 228428743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228432796 and 228432805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228432889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20144 + ... + 29370.

It is an arithmetic number, because the mean of its divisors is an integer number (30083280).

Almost surely, 2^228432839 is an apocalyptic number.

228432839 is a deficient number, since it is larger than the sum of its proper divisors (12233401).

228432839 is a wasteful number, since it uses less digits than its factorization.

228432839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10549.

The product of its digits is 165888, while the sum is 41.

The square root of 228432839 is about 15113.9948061391. The cubic root of 228432839 is about 611.2978182265.

The spelling of 228432839 in words is "two hundred twenty-eight million, four hundred thirty-two thousand, eight hundred thirty-nine".