428810025 has 96 divisors (see below), whose sum is σ = 841216000. Its totient is φ = 192628800.

The previous prime is 428810009. The next prime is 428810071. The reversal of 428810025 is 520018824.

It is not a de Polignac number, because 428810025 - 2⁴ = 428810009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428809974 and 428810001.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2032170 + ... + 2032380.

Almost surely, 2^428810025 is an apocalyptic number.

It is an amenable number.

428810025 is a deficient number, since it is larger than the sum of its proper divisors (412405975).

428810025 is a wasteful number, since it uses less digits than its factorization.

428810025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 428810025 is about 20707.7286296687. The cubic root of 428810025 is about 754.0873289691.

Adding to 428810025 its reverse (520018824), we get a palindrome (948828849).

The spelling of 428810025 in words is "four hundred twenty-eight million, eight hundred ten thousand, twenty-five".