1384656 has 80 divisors (see below), whose sum is σ = 4416384. Its totient is φ = 364032.

The previous prime is 1384631. The next prime is 1384661. The reversal of 1384656 is 6564831.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4210 + ... + 4526.

2^1384656 is an apocalyptic number.

1384656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1384656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2208192).

1384656 is an abundant number, since it is smaller than the sum of its proper divisors (3031728).

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

1384656 is a wasteful number, since it uses less digits than its factorization.

1384656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 342 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1384656 is about 1176.7140689224. The cubic root of 1384656 is about 111.4586975930.

The spelling of 1384656 in words is "one million, three hundred eighty-four thousand, six hundred fifty-six".