1335220 has 24 divisors (see below), whose sum is σ = 2836008. Its totient is φ = 528000.

The previous prime is 1335211. The next prime is 1335233. The reversal of 1335220 is 225331.

It can be written as a sum of positive squares in 4 ways, for example, as 649636 + 685584 = 806^2 + 828^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1335194 and 1335203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1690 + ... + 2350.

It is an arithmetic number, because the mean of its divisors is an integer number (118167).

2^1335220 is an apocalyptic number.

1335220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1335220 is an abundant number, since it is smaller than the sum of its proper divisors (1500788).

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

1335220 is a wasteful number, since it uses less digits than its factorization.

1335220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 1335220 is about 1155.5172002182. The cubic root of 1335220 is about 110.1161307971.

The spelling of 1335220 in words is "one million, three hundred thirty-five thousand, two hundred twenty".