1306020 has 24 divisors (see below), whose sum is σ = 3657024. Its totient is φ = 348256.

The previous prime is 1306007. The next prime is 1306027. The reversal of 1306020 is 206031.

1306020 is nontrivially palindromic in base 14.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1305987 and 1306005.

It is not an unprimeable number, because it can be changed into a prime (1306027) 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, 10824 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (152376).

2^1306020 is an apocalyptic number.

1306020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306020 is an abundant number, since it is smaller than the sum of its proper divisors (2351004).

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

1306020 is a wasteful number, since it uses less digits than its factorization.

1306020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21779 (or 21777 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1306020 is about 1142.8123205496. The cubic root of 1306020 is about 109.3074952163.

The spelling of 1306020 in words is "one million, three hundred six thousand, twenty".