428044 has 12 divisors (see below), whose sum is σ = 756504. Its totient is φ = 211904.

The previous prime is 428041. The next prime is 428047. The reversal of 428044 is 440824.

It is an interprime number because it is at equal distance from previous prime (428041) and next prime (428047).

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 3 ways as a sum of consecutive naturals, for example, 22 + ... + 925.

It is an arithmetic number, because the mean of its divisors is an integer number (63042).

2⁴²⁸⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

428044 is a deficient number, since it is larger than the sum of its proper divisors (328460).

428044 is a wasteful number, since it uses less digits than its factorization.

428044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 428044 is about 654.2507164688. The cubic root of 428044 is about 75.3638028172.

Adding to 428044 its reverse (440824), we get a palindrome (868868).

The spelling of 428044 in words is "four hundred twenty-eight thousand, forty-four".