1384830 has 64 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 351648.

The previous prime is 1384829. The next prime is 1384843. The reversal of 1384830 is 384831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1384794 and 1384803.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6099 + ... + 6321.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

2^1384830 is an apocalyptic number.

1384830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1384830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935360).

1384830 is an abundant number, since it is smaller than the sum of its proper divisors (2485890).

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

1384830 is a wasteful number, since it uses less digits than its factorization.

1384830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1384830 is about 1176.7880012984. The cubic root of 1384830 is about 111.4633661415.

Subtracting from 1384830 its reverse (384831), we obtain a palindrome (999999).

The spelling of 1384830 in words is "one million, three hundred eighty-four thousand, eight hundred thirty".