1384385 has 16 divisors (see below), whose sum is σ = 1748736. Its totient is φ = 1051008.

The previous prime is 1384351. The next prime is 1384387. The reversal of 1384385 is 5834831.

1384385 = 158² + 159² + ... + 200².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1384385 - 2¹² = 1380289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1384387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10037 + ... + 10173.

It is an arithmetic number, because the mean of its divisors is an integer number (109296).

2^1384385 is an apocalyptic number.

It is an amenable number.

1384385 is a deficient number, since it is larger than the sum of its proper divisors (364351).

1384385 is a wasteful number, since it uses less digits than its factorization.

1384385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232.

The product of its digits is 11520, while the sum is 32.

The square root of 1384385 is about 1176.5989121192. The cubic root of 1384385 is about 111.4514256838.

The spelling of 1384385 in words is "one million, three hundred eighty-four thousand, three hundred eighty-five".