1288120 has 16 divisors (see below), whose sum is σ = 2898360. Its totient is φ = 515232.

The previous prime is 1288117. The next prime is 1288163. The reversal of 1288120 is 218821.

It is a junction number, because it is equal to n+sod(n) for n = 1288091 and 1288100.

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, 16062 + ... + 16141.

2^1288120 is an apocalyptic number.

1288120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1288120 is an abundant number, since it is smaller than the sum of its proper divisors (1610240).

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

1288120 is a wasteful number, since it uses less digits than its factorization.

1288120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32214 (or 32210 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1288120 is about 1134.9537435508. The cubic root of 1288120 is about 108.8058153610.

The spelling of 1288120 in words is "one million, two hundred eighty-eight thousand, one hundred twenty".