1330646 has 16 divisors (see below), whose sum is σ = 2128560. Its totient is φ = 623808.

The previous prime is 1330633. The next prime is 1330649. The reversal of 1330646 is 6460331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13670 + ... + 13766.

It is an arithmetic number, because the mean of its divisors is an integer number (133035).

2^1330646 is an apocalyptic number.

1330646 is a deficient number, since it is larger than the sum of its proper divisors (797914).

1330646 is an frugal number, since it uses more digits than its factorization.

1330646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1330646 is about 1153.5363019862. The cubic root of 1330646 is about 109.9902470692.

Adding to 1330646 its reverse (6460331), we get a palindrome (7790977).

The spelling of 1330646 in words is "one million, three hundred thirty thousand, six hundred forty-six".