1320210 has 24 divisors (see below), whose sum is σ = 3432780. Its totient is φ = 352032.

The previous prime is 1320199. The next prime is 1320211. The reversal of 1320210 is 120231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1320201 + 9 = 1149^2 + 3^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1320192 and 1320201.

It is not an unprimeable number, because it can be changed into a prime (1320211) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7245 + ... + 7424.

2^1320210 is an apocalyptic number.

1320210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320210 is an abundant number, since it is smaller than the sum of its proper divisors (2112570).

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

1320210 is a wasteful number, since it uses less digits than its factorization.

1320210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14682 (or 14679 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1320210 is about 1149.0039164424. The cubic root of 1320210 is about 109.7019479593.

Adding to 1320210 its reverse (120231), we get a palindrome (1440441).

The spelling of 1320210 in words is "one million, three hundred twenty thousand, two hundred ten".