1384398 has 32 divisors (see below), whose sum is σ = 3179520. Its totient is φ = 446040.

The previous prime is 1384391. The next prime is 1384403. The reversal of 1384398 is 8934831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261 + ... + 2087.

It is an arithmetic number, because the mean of its divisors is an integer number (99360).

2^1384398 is an apocalyptic number.

1384398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1384398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589760).

1384398 is an abundant number, since it is smaller than the sum of its proper divisors (1795122).

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

1384398 is a wasteful number, since it uses less digits than its factorization.

1384398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 863 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1384398 is about 1176.6044365036. The cubic root of 1384398 is about 111.4517745425.

The spelling of 1384398 in words is "one million, three hundred eighty-four thousand, three hundred ninety-eight".