4238809428 has 48 divisors (see below), whose sum is σ = 11668127744. Its totient is φ = 1172020320.

The previous prime is 4238809423. The next prime is 4238809439. The reversal of 4238809428 is 8249088324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4238809423) 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 15 ways as a sum of consecutive naturals, for example, 811300 + ... + 816507.

Almost surely, 2^4238809428 is an apocalyptic number.

It is an amenable number.

4238809428 is an abundant number, since it is smaller than the sum of its proper divisors (7429318316).

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

4238809428 is a wasteful number, since it uses less digits than its factorization.

4238809428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627852 (or 1627850 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 4238809428 is about 65106.1397104758. The cubic root of 4238809428 is about 1618.3829604504.

The spelling of 4238809428 in words is "four billion, two hundred thirty-eight million, eight hundred nine thousand, four hundred twenty-eight".