1289480 has 16 divisors (see below), whose sum is σ = 2901420. Its totient is φ = 515776.

The previous prime is 1289459. The next prime is 1289513. The reversal of 1289480 is 849821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 75076 = 1102^2 + 274^2 .

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, 16079 + ... + 16158.

2^1289480 is an apocalyptic number.

1289480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1289480 is an abundant number, since it is smaller than the sum of its proper divisors (1611940).

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

1289480 is a wasteful number, since it uses less digits than its factorization.

1289480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32248 (or 32244 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1289480 is about 1135.5527288506. The cubic root of 1289480 is about 108.8440943675.

The spelling of 1289480 in words is "one million, two hundred eighty-nine thousand, four hundred eighty".