425671345 has 36 divisors (see below), whose sum is σ = 592874100. Its totient is φ = 293135040.

The previous prime is 425671321. The next prime is 425671357. The reversal of 425671345 is 543176524.

It can be written as a sum of positive squares in 2 ways, for example, as 252301456 + 173369889 = 15884^2 + 13167^2 .

It is a de Polignac number, because none of the positive numbers 2^k-425671345 is a prime.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 217431 + ... + 219379.

It is an arithmetic number, because the mean of its divisors is an integer number (16468725).

Almost surely, 2^425671345 is an apocalyptic number.

It is an amenable number.

425671345 is a deficient number, since it is larger than the sum of its proper divisors (167202755).

425671345 is a wasteful number, since it uses less digits than its factorization.

425671345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 1984 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 425671345 is about 20631.8042109749. The cubic root of 425671345 is about 752.2429713450.

The spelling of 425671345 in words is "four hundred twenty-five million, six hundred seventy-one thousand, three hundred forty-five".