428228106 has 8 divisors (see below), whose sum is σ = 856456224. Its totient is φ = 142742700.

The previous prime is 428228093. The next prime is 428228107. The reversal of 428228106 is 601822824.

It is a happy number.

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

428228106 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (428228107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35685670 + ... + 35685681.

It is an arithmetic number, because the mean of its divisors is an integer number (107057028).

Almost surely, 2^428228106 is an apocalyptic number.

428228106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428228106 is a wasteful number, since it uses less digits than its factorization.

428228106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71371356.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 428228106 is about 20693.6730910682. The cubic root of 428228106 is about 753.7460617656.

The spelling of 428228106 in words is "four hundred twenty-eight million, two hundred twenty-eight thousand, one hundred six".