425534439 has 32 divisors (see below), whose sum is σ = 627314688. Its totient is φ = 254448000.

The previous prime is 425534419. The next prime is 425534471. The reversal of 425534439 is 934435524.

It is a de Polignac number, because none of the positive numbers 2^k-425534439 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 425534397 and 425534406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425534419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1140657 + ... + 1141029.

It is an arithmetic number, because the mean of its divisors is an integer number (19603584).

Almost surely, 2^425534439 is an apocalyptic number.

425534439 is a deficient number, since it is larger than the sum of its proper divisors (201780249).

425534439 is a wasteful number, since it uses less digits than its factorization.

425534439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 259200, while the sum is 39.

The square root of 425534439 is about 20628.4861053835. The cubic root of 425534439 is about 752.1623163042.

The spelling of 425534439 in words is "four hundred twenty-five million, five hundred thirty-four thousand, four hundred thirty-nine".