428849829 has 16 divisors (see below), whose sum is σ = 636222400. Its totient is φ = 285499728.

The previous prime is 428849797. The next prime is 428849843. The reversal of 428849829 is 928948824.

It is not a de Polignac number, because 428849829 - 2⁵ = 428849797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428849849) 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, 9207 + ... + 30699.

It is an arithmetic number, because the mean of its divisors is an integer number (39763900).

Almost surely, 2^428849829 is an apocalyptic number.

It is an amenable number.

428849829 is a deficient number, since it is larger than the sum of its proper divisors (207372571).

428849829 is a wasteful number, since it uses less digits than its factorization.

428849829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22241 (or 22235 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 428849829 is about 20708.6896978056. The cubic root of 428849829 is about 754.1106607956.

The spelling of 428849829 in words is "four hundred twenty-eight million, eight hundred forty-nine thousand, eight hundred twenty-nine".