425340434 has 32 divisors (see below), whose sum is σ = 671742720. Its totient is φ = 201801600.

The previous prime is 425340431. The next prime is 425340451. The reversal of 425340434 is 434043524.

It is a junction number, because it is equal to n+sod(n) for n = 425340397 and 425340406.

It is not an unprimeable number, because it can be changed into a prime (425340431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466439 + ... + 467349.

It is an arithmetic number, because the mean of its divisors is an integer number (20991960).

Almost surely, 2^425340434 is an apocalyptic number.

425340434 is a deficient number, since it is larger than the sum of its proper divisors (246402286).

425340434 is a wasteful number, since it uses less digits than its factorization.

425340434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 425340434 is about 20623.7832125922. The cubic root of 425340434 is about 752.0479930608.

Adding to 425340434 its reverse (434043524), we get a palindrome (859383958).

The spelling of 425340434 in words is "four hundred twenty-five million, three hundred forty thousand, four hundred thirty-four".