428025 has 24 divisors (see below), whose sum is σ = 763840. Its totient is φ = 210240.

The previous prime is 428023. The next prime is 428027. The reversal of 428025 is 520824.

It is an interprime number because it is at equal distance from previous prime (428023) and next prime (428027).

It is not a de Polignac number, because 428025 - 2¹ = 428023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427992 and 428010.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428025.

It is not an unprimeable number, because it can be changed into a prime (428023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 756 + ... + 1194.

2⁴²⁸⁰²⁵ is an apocalyptic number.

It is an amenable number.

428025 is a deficient number, since it is larger than the sum of its proper divisors (335815).

428025 is a wasteful number, since it uses less digits than its factorization.

428025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 428025 is about 654.2361958804. The cubic root of 428025 is about 75.3626877188.

Adding to 428025 its reverse (520824), we get a palindrome (948849).

The spelling of 428025 in words is "four hundred twenty-eight thousand, twenty-five".