228428422 has 8 divisors (see below), whose sum is σ = 362798136. Its totient is φ = 107495712.

The previous prime is 228428407. The next prime is 228428437. The reversal of 228428422 is 224824822.

228428422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228428407) and next prime (228428437).

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 6718483 = 228428422 / (2 + 2 + 8 + 4 + 2 + 8 + 4 + 2 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3359208 + ... + 3359275.

It is an arithmetic number, because the mean of its divisors is an integer number (45349767).

Almost surely, 2^228428422 is an apocalyptic number.

228428422 is a deficient number, since it is larger than the sum of its proper divisors (134369714).

228428422 is a wasteful number, since it uses less digits than its factorization.

228428422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718502.

The product of its digits is 32768, while the sum is 34.

The square root of 228428422 is about 15113.8486825825. The cubic root of 228428422 is about 611.2938781627.

The spelling of 228428422 in words is "two hundred twenty-eight million, four hundred twenty-eight thousand, four hundred twenty-two".