1325320 has 32 divisors (see below), whose sum is σ = 3159000. Its totient is φ = 498688.

The previous prime is 1325309. The next prime is 1325333. The reversal of 1325320 is 235231.

It can be written as a sum of positive squares in 4 ways, for example, as 1295044 + 30276 = 1138^2 + 174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1325294 and 1325303.

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 7 ways as a sum of consecutive naturals, for example, 295 + ... + 1654.

2^1325320 is an apocalyptic number.

1325320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325320 is an abundant number, since it is smaller than the sum of its proper divisors (1833680).

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

1325320 is a wasteful number, since it uses less digits than its factorization.

1325320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 1325320 is about 1151.2254340484. The cubic root of 1325320 is about 109.8433030592.

The spelling of 1325320 in words is "one million, three hundred twenty-five thousand, three hundred twenty".