228403829 has 2 divisors, whose sum is σ = 228403830. Its totient is φ = 228403828.

The previous prime is 228403801. The next prime is 228403841. The reversal of 228403829 is 928304822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179613604 + 48790225 = 13402^2 + 6985^2 .

It is a cyclic number.

It is not a de Polignac number, because 228403829 - 2¹² = 228399733 is a prime.

It is a super-2 number, since 2×228403829² = 104336618203722482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228403792 and 228403801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228403859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114201914 + 114201915.

It is an arithmetic number, because the mean of its divisors is an integer number (114201915).

Almost surely, 2^228403829 is an apocalyptic number.

It is an amenable number.

228403829 is a deficient number, since it is larger than the sum of its proper divisors (1).

228403829 is an equidigital number, since it uses as much as digits as its factorization.

228403829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 228403829 is about 15113.0350691051. The cubic root of 228403829 is about 611.2719397224.

The spelling of 228403829 in words is "two hundred twenty-eight million, four hundred three thousand, eight hundred twenty-nine".