425430321 has 16 divisors (see below), whose sum is σ = 601582464. Its totient is φ = 266503424.

The previous prime is 425430307. The next prime is 425430337. The reversal of 425430321 is 123034524.

It is not a de Polignac number, because 425430321 - 2⁵ = 425430289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 425430291 and 425430300.

It is not an unprimeable number, because it can be changed into a prime (425430301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26551 + ... + 39443.

It is an arithmetic number, because the mean of its divisors is an integer number (37598904).

Almost surely, 2^425430321 is an apocalyptic number.

It is an amenable number.

425430321 is a deficient number, since it is larger than the sum of its proper divisors (176152143).

425430321 is a wasteful number, since it uses less digits than its factorization.

425430321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13560.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 425430321 is about 20625.9623048235. The cubic root of 425430321 is about 752.1009659826.

Adding to 425430321 its reverse (123034524), we get a palindrome (548464845).

The spelling of 425430321 in words is "four hundred twenty-five million, four hundred thirty thousand, three hundred twenty-one".