1317020 has 12 divisors (see below), whose sum is σ = 2765784. Its totient is φ = 526800.

The previous prime is 1317013. The next prime is 1317031. The reversal of 1317020 is 207131.

It is a junction number, because it is equal to n+sod(n) for n = 1316986 and 1317004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32906 + ... + 32945.

It is an arithmetic number, because the mean of its divisors is an integer number (230482).

2^1317020 is an apocalyptic number.

1317020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317020 is an abundant number, since it is smaller than the sum of its proper divisors (1448764).

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

1317020 is a wasteful number, since it uses less digits than its factorization.

1317020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65860 (or 65858 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1317020 is about 1147.6149179930. The cubic root of 1317020 is about 109.6135197416.

The spelling of 1317020 in words is "one million, three hundred seventeen thousand, twenty".