440349 has 16 divisors (see below), whose sum is σ = 723072. Its totient is φ = 232128.

The previous prime is 440347. The next prime is 440371. The reversal of 440349 is 943044.

It is not a de Polignac number, because 440349 - 2¹ = 440347 is a prime.

It is an Ulam number.

It is a Curzon number.

440349 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534 + ... + 1079.

It is an arithmetic number, because the mean of its divisors is an integer number (45192).

2⁴⁴⁰³⁴⁹ is an apocalyptic number.

It is an amenable number.

440349 is a deficient number, since it is larger than the sum of its proper divisors (282723).

440349 is a wasteful number, since it uses less digits than its factorization.

440349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 440349 is about 663.5879745746. The cubic root of 440349 is about 76.0791534524.

The spelling of 440349 in words is "four hundred forty thousand, three hundred forty-nine".