228678029 has 4 divisors (see below), whose sum is σ = 238620576. Its totient is φ = 218735484.

The previous prime is 228678017. The next prime is 228678097. The reversal of 228678029 is 920876822.

228678029 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228678029 - 2⁴ = 228678013 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 (228678629) 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, 4971239 + ... + 4971284.

It is an arithmetic number, because the mean of its divisors is an integer number (59655144).

Almost surely, 2^228678029 is an apocalyptic number.

It is an amenable number.

228678029 is a deficient number, since it is larger than the sum of its proper divisors (9942547).

228678029 is an equidigital number, since it uses as much as digits as its factorization.

228678029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942546.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 228678029 is about 15122.1039872102. The cubic root of 228678029 is about 611.5164536297.

The spelling of 228678029 in words is "two hundred twenty-eight million, six hundred seventy-eight thousand, twenty-nine".