440487 has 12 divisors (see below), whose sum is σ = 673920. Its totient is φ = 276288.

The previous prime is 440471. The next prime is 440497. The reversal of 440487 is 784044.

It is not a de Polignac number, because 440487 - 2⁴ = 440471 is a prime.

440487 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 440487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1287 + ... + 1592.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2⁴⁴⁰⁴⁸⁷ is an apocalyptic number.

440487 is a deficient number, since it is larger than the sum of its proper divisors (233433).

440487 is a wasteful number, since it uses less digits than its factorization.

440487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902 (or 2899 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 440487 is about 663.6919466138. The cubic root of 440487 is about 76.0871000482.

The spelling of 440487 in words is "four hundred forty thousand, four hundred eighty-seven".