1240568 has 16 divisors (see below), whose sum is σ = 2658480. Its totient is φ = 531648.

The previous prime is 1240559. The next prime is 1240607. The reversal of 1240568 is 8650421.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11021 + ... + 11132.

It is an arithmetic number, because the mean of its divisors is an integer number (166155).

2^1240568 is an apocalyptic number.

It is an amenable number.

1240568 is an abundant number, since it is smaller than the sum of its proper divisors (1417912).

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

1240568 is a wasteful number, since it uses less digits than its factorization.

1240568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22166 (or 22162 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1240568 is about 1113.8078828954. The cubic root of 1240568 is about 107.4501084512.

Adding to 1240568 its reverse (8650421), we get a palindrome (9890989).

The spelling of 1240568 in words is "one million, two hundred forty thousand, five hundred sixty-eight".