228708413 has 4 divisors (see below), whose sum is σ = 236594940. Its totient is φ = 220821888.

The previous prime is 228708401. The next prime is 228708419. The reversal of 228708413 is 314807822.

228708413 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 2 ways, for example, as 75394489 + 153313924 = 8683^2 + 12382^2 .

It is a cyclic number.

It is not a de Polignac number, because 228708413 - 2¹² = 228704317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228708419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3943220 + ... + 3943277.

It is an arithmetic number, because the mean of its divisors is an integer number (59148735).

Almost surely, 2^228708413 is an apocalyptic number.

It is an amenable number.

228708413 is a deficient number, since it is larger than the sum of its proper divisors (7886527).

228708413 is an equidigital number, since it uses as much as digits as its factorization.

228708413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7886526.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 228708413 is about 15123.1085759509. The cubic root of 228708413 is about 611.5435360932.

The spelling of 228708413 in words is "two hundred twenty-eight million, seven hundred eight thousand, four hundred thirteen".