1320416 has 12 divisors (see below), whose sum is σ = 2599632. Its totient is φ = 660192.
The previous prime is 1320413. The next prime is 1320421. The reversal of 1320416 is 6140231.
It is a junction number, because it is equal to n+sod(n) for n = 1320394 and 1320403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1320413) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20600 + ... + 20663.
It is an arithmetic number, because the mean of its divisors is an integer number (216636).
21320416 is an apocalyptic number.
1320416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
1320416 is a deficient number, since it is larger than the sum of its proper divisors (1279216).
1320416 is an equidigital number, since it uses as much as digits as its factorization.
1320416 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41273 (or 41265 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 1320416 is about 1149.0935558082. The cubic root of 1320416 is about 109.7076534723.
Adding to 1320416 its reverse (6140231), we get a palindrome (7460647).
The spelling of 1320416 in words is "one million, three hundred twenty thousand, four hundred sixteen".
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