1288485 has 48 divisors (see below), whose sum is σ = 2583360. Its totient is φ = 587520.

The previous prime is 1288439. The next prime is 1288487. The reversal of 1288485 is 5848821.

It is not a de Polignac number, because 1288485 - 2⁶ = 1288421 is a prime.

It is a super-4 number, since 4×1288485⁴ (a number of 26 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9337 + ... + 9473.

It is an arithmetic number, because the mean of its divisors is an integer number (53820).

2^1288485 is an apocalyptic number.

1288485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1288485 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1288485 is a wasteful number, since it uses less digits than its factorization.

1288485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 175 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 1288485 is about 1135.1145316663. The cubic root of 1288485 is about 108.8160914150.

The spelling of 1288485 in words is "one million, two hundred eighty-eight thousand, four hundred eighty-five".