1335820 has 12 divisors (see below), whose sum is σ = 2805264. Its totient is φ = 534320.

The previous prime is 1335797. The next prime is 1335847. The reversal of 1335820 is 285331.

It is a junction number, because it is equal to n+sod(n) for n = 1335791 and 1335800.

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 3 ways as a sum of consecutive naturals, for example, 33376 + ... + 33415.

It is an arithmetic number, because the mean of its divisors is an integer number (233772).

2^1335820 is an apocalyptic number.

1335820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1335820 is an abundant number, since it is smaller than the sum of its proper divisors (1469444).

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

1335820 is a wasteful number, since it uses less digits than its factorization.

1335820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66800 (or 66798 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1335820 is about 1155.7767950604. The cubic root of 1335820 is about 110.1326224076.

The spelling of 1335820 in words is "one million, three hundred thirty-five thousand, eight hundred twenty".