428049039 has 16 divisors (see below), whose sum is σ = 626590080. Its totient is φ = 257768160.

The previous prime is 428049031. The next prime is 428049049. The reversal of 428049039 is 930940824.

It is not a de Polignac number, because 428049039 - 2³ = 428049031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428048988 and 428049006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428049031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36129 + ... + 46490.

It is an arithmetic number, because the mean of its divisors is an integer number (39161880).

Almost surely, 2^428049039 is an apocalyptic number.

428049039 is a deficient number, since it is larger than the sum of its proper divisors (198541041).

428049039 is a wasteful number, since it uses less digits than its factorization.

428049039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82790.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 428049039 is about 20689.3460263973. The cubic root of 428049039 is about 753.6409854744.

The spelling of 428049039 in words is "four hundred twenty-eight million, forty-nine thousand, thirty-nine".