1240868 has 12 divisors (see below), whose sum is σ = 2241792. Its totient is φ = 600360.

The previous prime is 1240861. The next prime is 1240931. The reversal of 1240868 is 8680421.

It is a self number, because there is not a number n which added to its sum of digits gives 1240868.

It is not an unprimeable number, because it can be changed into a prime (1240861) 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 3 ways as a sum of consecutive naturals, for example, 4880 + ... + 5127.

It is an arithmetic number, because the mean of its divisors is an integer number (186816).

2^1240868 is an apocalyptic number.

It is an amenable number.

1240868 is a deficient number, since it is larger than the sum of its proper divisors (1000924).

1240868 is a wasteful number, since it uses less digits than its factorization.

1240868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042 (or 10040 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1240868 is about 1113.9425478902. The cubic root of 1240868 is about 107.4587691170.

The spelling of 1240868 in words is "one million, two hundred forty thousand, eight hundred sixty-eight".