440425 has 12 divisors (see below), whose sum is σ = 555520. Its totient is φ = 346320.

The previous prime is 440399. The next prime is 440431. The reversal of 440425 is 524044.

It is not a de Polignac number, because 440425 - 2⁵ = 440393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1864 + ... + 2086.

2⁴⁴⁰⁴²⁵ is an apocalyptic number.

It is an amenable number.

440425 is a deficient number, since it is larger than the sum of its proper divisors (115095).

440425 is a wasteful number, since it uses less digits than its factorization.

440425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 440425 is about 663.6452365534. The cubic root of 440425 is about 76.0835300439.

Adding to 440425 its reverse (524044), we get a palindrome (964469).

The spelling of 440425 in words is "four hundred forty thousand, four hundred twenty-five".