1240008 has 96 divisors (see below), whose sum is σ = 3958080. Its totient is φ = 316800.

The previous prime is 1240007. The next prime is 1240009. The reversal of 1240008 is 8000421.

1240008 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (1240007) and next prime (1240009).

It is a nialpdrome in base 11.

It is a zygodrome in base 9 and base 11.

It is not an unprimeable number, because it can be changed into a prime (1240007) 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 23 ways as a sum of consecutive naturals, for example, 20298 + ... + 20358.

It is an arithmetic number, because the mean of its divisors is an integer number (41230).

2^1240008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979040).

1240008 is an abundant number, since it is smaller than the sum of its proper divisors (2718072).

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

1240008 is a wasteful number, since it uses less digits than its factorization.

1240008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1240008 is about 1113.5564646663. The cubic root of 1240008 is about 107.4339381386.

Adding to 1240008 its reverse (8000421), we get a palindrome (9240429).

The spelling of 1240008 in words is "one million, two hundred forty thousand, eight".