1288578 has 8 divisors (see below), whose sum is σ = 2577168. Its totient is φ = 429524.

The previous prime is 1288571. The next prime is 1288597. The reversal of 1288578 is 8758821.

It is a sphenic number, since it is the product of 3 distinct primes.

1288578 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1288571) 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, 107376 + ... + 107387.

It is an arithmetic number, because the mean of its divisors is an integer number (322146).

2^1288578 is an apocalyptic number.

1288578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1288578 is a wasteful number, since it uses less digits than its factorization.

1288578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214768.

The product of its digits is 35840, while the sum is 39.

The square root of 1288578 is about 1135.1554959564. The cubic root of 1288578 is about 108.8187093871.

The spelling of 1288578 in words is "one million, two hundred eighty-eight thousand, five hundred seventy-eight".