440437 has 4 divisors (see below), whose sum is σ = 449856. Its totient is φ = 431020.

The previous prime is 440431. The next prime is 440441. The reversal of 440437 is 734044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440437 - 2¹⁵ = 407669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440431) 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 3 ways as a sum of consecutive naturals, for example, 4639 + ... + 4732.

It is an arithmetic number, because the mean of its divisors is an integer number (112464).

2⁴⁴⁰⁴³⁷ is an apocalyptic number.

440437 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

440437 is a deficient number, since it is larger than the sum of its proper divisors (9419).

440437 is an equidigital number, since it uses as much as digits as its factorization.

440437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9418.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 440437 is about 663.6542774668. The cubic root of 440437 is about 76.0842210386.

The spelling of 440437 in words is "four hundred forty thousand, four hundred thirty-seven".