1209080 has 32 divisors (see below), whose sum is σ = 2751840. Its totient is φ = 478080.

The previous prime is 1209079. The next prime is 1209083. The reversal of 1209080 is 809021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6590 + ... + 6770.

It is an arithmetic number, because the mean of its divisors is an integer number (85995).

2^1209080 is an apocalyptic number.

1209080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1209080 is an abundant number, since it is smaller than the sum of its proper divisors (1542760).

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

1209080 is a wasteful number, since it uses less digits than its factorization.

1209080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1209080 is about 1099.5817386625. The cubic root of 1209080 is about 106.5332098302.

The spelling of 1209080 in words is "one million, two hundred nine thousand, eighty".