428730425 has 12 divisors (see below), whose sum is σ = 543990480. Its totient is φ = 335007120.

The previous prime is 428730413. The next prime is 428730427. The reversal of 428730425 is 524037824.

It is a de Polignac number, because none of the positive numbers 2^k-428730425 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428730427) 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, 198335 + ... + 200484.

It is an arithmetic number, because the mean of its divisors is an integer number (45332540).

Almost surely, 2^428730425 is an apocalyptic number.

It is an amenable number.

428730425 is a deficient number, since it is larger than the sum of its proper divisors (115260055).

428730425 is a wasteful number, since it uses less digits than its factorization.

428730425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398872 (or 398867 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 428730425 is about 20705.8065527523. The cubic root of 428730425 is about 754.0406656742.

The spelling of 428730425 in words is "four hundred twenty-eight million, seven hundred thirty thousand, four hundred twenty-five".