444407 has 4 divisors (see below), whose sum is σ = 456456. Its totient is φ = 432360.

The previous prime is 444403. The next prime is 444421. The reversal of 444407 is 704444.

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 444407 - 2² = 444403 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 (444401) 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, 5969 + ... + 6042.

It is an arithmetic number, because the mean of its divisors is an integer number (114114).

2⁴⁴⁴⁴⁰⁷ is an apocalyptic number.

444407 is a deficient number, since it is larger than the sum of its proper divisors (12049).

444407 is a wasteful number, since it uses less digits than its factorization.

444407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12048.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 444407 is about 666.6385827418. The cubic root of 444407 is about 76.3121396173.

The spelling of 444407 in words is "four hundred forty-four thousand, four hundred seven", and thus it is an iban number.