1325780 has 24 divisors (see below), whose sum is σ = 2808960. Its totient is φ = 525600.

The previous prime is 1325773. The next prime is 1325791. The reversal of 1325780 is 875231.

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, 2801 + ... + 3239.

It is an arithmetic number, because the mean of its divisors is an integer number (117040).

2^1325780 is an apocalyptic number.

1325780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325780 is an abundant number, since it is smaller than the sum of its proper divisors (1483180).

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

1325780 is a wasteful number, since it uses less digits than its factorization.

1325780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1325780 is about 1151.4252038235. The cubic root of 1325780 is about 109.8560099463.

The spelling of 1325780 in words is "one million, three hundred twenty-five thousand, seven hundred eighty".