1320530 has 32 divisors (see below), whose sum is σ = 2528064. Its totient is φ = 495936.

The previous prime is 1320437. The next prime is 1320533. The reversal of 1320530 is 350231.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1320533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15869 + ... + 15951.

It is an arithmetic number, because the mean of its divisors is an integer number (79002).

2^1320530 is an apocalyptic number.

1320530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320530 is a deficient number, since it is larger than the sum of its proper divisors (1207534).

1320530 is a wasteful number, since it uses less digits than its factorization.

1320530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 1320530 is about 1149.1431590537. The cubic root of 1320530 is about 109.7108106370.

Adding to 1320530 its reverse (350231), we get a palindrome (1670761).

Subtracting from 1320530 its reverse (350231), we obtain a cube (970299 = 99³).

The spelling of 1320530 in words is "one million, three hundred twenty thousand, five hundred thirty".