428049 has 12 divisors (see below), whose sum is σ = 624000. Its totient is φ = 282744.

The previous prime is 428047. The next prime is 428083. The reversal of 428049 is 940824.

It is not a de Polignac number, because 428049 - 2¹ = 428047 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1672 + ... + 1910.

It is an arithmetic number, because the mean of its divisors is an integer number (52000).

2⁴²⁸⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

428049 is a deficient number, since it is larger than the sum of its proper divisors (195951).

428049 is a wasteful number, since it uses less digits than its factorization.

428049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 428049 is about 654.2545376228. The cubic root of 428049 is about 75.3640962586.

The spelling of 428049 in words is "four hundred twenty-eight thousand, forty-nine".