1240566 has 16 divisors (see below), whose sum is σ = 2496000. Its totient is φ = 411048.

The previous prime is 1240559. The next prime is 1240607. The reversal of 1240566 is 6650421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675 + ... + 1713.

It is an arithmetic number, because the mean of its divisors is an integer number (156000).

2^1240566 is an apocalyptic number.

1240566 is an abundant number, since it is smaller than the sum of its proper divisors (1255434).

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

1240566 is a wasteful number, since it uses less digits than its factorization.

1240566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1240566 is about 1113.8069850742. The cubic root of 1240566 is about 107.4500507088.

Adding to 1240566 its reverse (6650421), we get a palindrome (7890987).

The spelling of 1240566 in words is "one million, two hundred forty thousand, five hundred sixty-six".