4229428 has 12 divisors (see below), whose sum is σ = 8458912. Its totient is φ = 1812600.

The previous prime is 4229417. The next prime is 4229429. The reversal of 4229428 is 8249224.

4229428 is an admirable number.

It is a super-2 number, since 2×4229428² = 35776122414368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4229428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4229429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75498 + ... + 75553.

Almost surely, 2^4229428 is an apocalyptic number.

It is an amenable number.

4229428 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.

4229428 is a wasteful number, since it uses less digits than its factorization.

4229428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151062 (or 151060 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 4229428 is about 2056.5573174604. The cubic root of 4229428 is about 161.7188131399.

The spelling of 4229428 in words is "four million, two hundred twenty-nine thousand, four hundred twenty-eight".