1205020 has 12 divisors (see below), whose sum is σ = 2530584. Its totient is φ = 482000.

The previous prime is 1204981. The next prime is 1205027. The reversal of 1205020 is 205021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1204988 and 1205006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30106 + ... + 30145.

It is an arithmetic number, because the mean of its divisors is an integer number (210882).

2^1205020 is an apocalyptic number.

1205020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1205020 is an abundant number, since it is smaller than the sum of its proper divisors (1325564).

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

1205020 is a wasteful number, since it uses less digits than its factorization.

1205020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60260 (or 60258 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 1205020 is about 1097.7340297176. The cubic root of 1205020 is about 106.4138325996.

Subtracting from 1205020 its reverse (205021), we obtain a palindrome (999999).

The spelling of 1205020 in words is "one million, two hundred five thousand, twenty".