1217080 has 16 divisors (see below), whose sum is σ = 2738520. Its totient is φ = 486816.

The previous prime is 1217077. The next prime is 1217089. The reversal of 1217080 is 807121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217089) 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, 15174 + ... + 15253.

2^1217080 is an apocalyptic number.

1217080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1217080 is an abundant number, since it is smaller than the sum of its proper divisors (1521440).

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

1217080 is a wasteful number, since it uses less digits than its factorization.

1217080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30438 (or 30434 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 1217080 is about 1103.2134879524. The cubic root of 1217080 is about 106.7676560916.

The spelling of 1217080 in words is "one million, two hundred seventeen thousand, eighty".