440993 has 8 divisors (see below), whose sum is σ = 511488. Its totient is φ = 372384.

The previous prime is 440989. The next prime is 441011. The reversal of 440993 is 399044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440993 - 2² = 440989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (440903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80 + ... + 942.

It is an arithmetic number, because the mean of its divisors is an integer number (63936).

2⁴⁴⁰⁹⁹³ is an apocalyptic number.

It is an amenable number.

440993 is a deficient number, since it is larger than the sum of its proper divisors (70495).

440993 is an equidigital number, since it uses as much as digits as its factorization.

440993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 440993 is about 664.0730381517. The cubic root of 440993 is about 76.1162233746.

The spelling of 440993 in words is "four hundred forty thousand, nine hundred ninety-three".