1332820 has 24 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 527136.

The previous prime is 1332803. The next prime is 1332823. The reversal of 1332820 is 282331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1737 + ... + 2383.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2^1332820 is an apocalyptic number.

1332820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332820 is an abundant number, since it is smaller than the sum of its proper divisors (1497644).

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

1332820 is a wasteful number, since it uses less digits than its factorization.

1332820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1332820 is about 1154.4782371271. The cubic root of 1332820 is about 110.0501149057.

The spelling of 1332820 in words is "one million, three hundred thirty-two thousand, eight hundred twenty".