1325680 has 40 divisors (see below), whose sum is σ = 3138192. Its totient is φ = 520704.
The previous prime is 1325669. The next prime is 1325693. The reversal of 1325680 is 865231.
1325680 = T55 + T56 + ... + T200.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5727 + ... + 5953.
21325680 is an apocalyptic number.
1325680 is a gapful number since it is divisible by the number (10) 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 1325680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569096).
1325680 is an abundant number, since it is smaller than the sum of its proper divisors (1812512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1325680 is a wasteful number, since it uses less digits than its factorization.
1325680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 313 (or 307 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 25.
The square root of 1325680 is about 1151.3817785600. The cubic root of 1325680 is about 109.8532478296.
The spelling of 1325680 in words is "one million, three hundred twenty-five thousand, six hundred eighty".
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