2229428 has 12 divisors (see below), whose sum is σ = 3965892. Its totient is φ = 1096320.

The previous prime is 2229419. The next prime is 2229467. The reversal of 2229428 is 8249222.

It can be written as a sum of positive squares in 2 ways, for example, as 44944 + 2184484 = 212^2 + 1478^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2229428.

It is a congruent number.

It is an unprimeable number.

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, 4325 + ... + 4812.

It is an arithmetic number, because the mean of its divisors is an integer number (330491).

2^2229428 is an apocalyptic number.

It is an amenable number.

2229428 is a deficient number, since it is larger than the sum of its proper divisors (1736464).

2229428 is a wasteful number, since it uses less digits than its factorization.

2229428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9202 (or 9200 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 2229428 is about 1493.1269202583. The cubic root of 2229428 is about 130.6364841898.

It can be divided in two parts, 22294 and 28, that added together give a palindrome (22322).

The spelling of 2229428 in words is "two million, two hundred twenty-nine thousand, four hundred twenty-eight".