440693 has 4 divisors (see below), whose sum is σ = 480768. Its totient is φ = 400620.

The previous prime is 440683. The next prime is 440711. The reversal of 440693 is 396044.

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 not a de Polignac number, because 440693 - 2⁴ = 440677 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 440693.

It is not an unprimeable number, because it can be changed into a prime (440653) 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, 20021 + ... + 20042.

It is an arithmetic number, because the mean of its divisors is an integer number (120192).

2⁴⁴⁰⁶⁹³ is an apocalyptic number.

It is an amenable number.

440693 is a deficient number, since it is larger than the sum of its proper divisors (40075).

440693 is a wasteful number, since it uses less digits than its factorization.

440693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40074.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 440693 is about 663.8471209548. The cubic root of 440693 is about 76.0989592706.

The spelling of 440693 in words is "four hundred forty thousand, six hundred ninety-three".