1384845 has 48 divisors (see below), whose sum is σ = 2808960. Its totient is φ = 570240.

The previous prime is 1384843. The next prime is 1384847. The reversal of 1384845 is 5484831.

It is an interprime number because it is at equal distance from previous prime (1384843) and next prime (1384847).

It is not a de Polignac number, because 1384845 - 2¹ = 1384843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12651 + ... + 12759.

It is an arithmetic number, because the mean of its divisors is an integer number (58520).

2^1384845 is an apocalyptic number.

1384845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1384845 is an abundant number, since it is smaller than the sum of its proper divisors (1424115).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1384845 is a wasteful number, since it uses less digits than its factorization.

1384845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 135 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 1384845 is about 1176.7943745617. The cubic root of 1384845 is about 111.4637685842.

The spelling of 1384845 in words is "one million, three hundred eighty-four thousand, eight hundred forty-five".