1384445 has 8 divisors (see below), whose sum is σ = 1684536. Its totient is φ = 1092096.

The previous prime is 1384433. The next prime is 1384477. The reversal of 1384445 is 5444831.

It can be written as a sum of positive squares in 4 ways, for example, as 45796 + 1338649 = 214^2 + 1157^2 .

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 1384445 - 2⁸ = 1384189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (210567).

2^1384445 is an apocalyptic number.

It is an amenable number.

1384445 is a deficient number, since it is larger than the sum of its proper divisors (300091).

1384445 is an equidigital number, since it uses as much as digits as its factorization.

1384445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its digits is 7680, while the sum is 29.

The square root of 1384445 is about 1176.6244090618. The cubic root of 1384445 is about 111.4530357824.

The spelling of 1384445 in words is "one million, three hundred eighty-four thousand, four hundred forty-five".