425685144 has 16 divisors (see below), whose sum is σ = 1064212920. Its totient is φ = 141895040.

The previous prime is 425685133. The next prime is 425685163. The reversal of 425685144 is 441586524.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8868417 + ... + 8868464.

Almost surely, 2^425685144 is an apocalyptic number.

It is an amenable number.

425685144 is an abundant number, since it is smaller than the sum of its proper divisors (638527776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425685144 is a wasteful number, since it uses less digits than its factorization.

425685144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17736890 (or 17736886 counting only the distinct ones).

The product of its digits is 153600, while the sum is 39.

The square root of 425685144 is about 20632.1386191543. The cubic root of 425685144 is about 752.2510997511.

The spelling of 425685144 in words is "four hundred twenty-five million, six hundred eighty-five thousand, one hundred forty-four".