440427 has 16 divisors (see below), whose sum is σ = 661248. Its totient is φ = 258720.

The previous prime is 440399. The next prime is 440431. The reversal of 440427 is 724044.

It is not a de Polignac number, because 440427 - 2⁸ = 440171 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 652 + ... + 1142.

It is an arithmetic number, because the mean of its divisors is an integer number (41328).

2⁴⁴⁰⁴²⁷ is an apocalyptic number.

440427 is a deficient number, since it is larger than the sum of its proper divisors (220821).

440427 is a wasteful number, since it uses less digits than its factorization.

440427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 440427 is about 663.6467433808. The cubic root of 440427 is about 76.0836452105.

The spelling of 440427 in words is "four hundred forty thousand, four hundred twenty-seven", and thus it is an iban number.