440867 has 4 divisors (see below), whose sum is σ = 503856. Its totient is φ = 377880.

The previous prime is 440863. The next prime is 440893. The reversal of 440867 is 768044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440867 - 2² = 440863 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (440863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31484 + ... + 31497.

It is an arithmetic number, because the mean of its divisors is an integer number (125964).

2⁴⁴⁰⁸⁶⁷ is an apocalyptic number.

440867 is a deficient number, since it is larger than the sum of its proper divisors (62989).

440867 is an equidigital number, since it uses as much as digits as its factorization.

440867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62988.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 440867 is about 663.9781622915. The cubic root of 440867 is about 76.1089734049.

Adding to 440867 its sum of digits (29), we get a square (440896 = 664²).

The spelling of 440867 in words is "four hundred forty thousand, eight hundred sixty-seven".