4428688212 has 72 divisors (see below), whose sum is σ = 12381756296. Its totient is φ = 1325839104.

The previous prime is 4428688193. The next prime is 4428688213. The reversal of 4428688212 is 2128868244.

4428688212 is a `hidden beast` number, since 4 + 428 + 6 + 8 + 8 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13883076 + 4414805136 = 3726^2 + 66444^2 .

It is a super-2 number, since 2×4428688212² = 39226558558215513888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428688213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110563 + ... + 145194.

Almost surely, 2^4428688212 is an apocalyptic number.

It is an amenable number.

4428688212 is an abundant number, since it is smaller than the sum of its proper divisors (7953068084).

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

4428688212 is a wasteful number, since it uses less digits than its factorization.

4428688212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255817 (or 255812 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The square root of 4428688212 is about 66548.3900030647. The cubic root of 4428688212 is about 1642.1961718480.

The spelling of 4428688212 in words is "four billion, four hundred twenty-eight million, six hundred eighty-eight thousand, two hundred twelve".