1240544 has 12 divisors (see below), whose sum is σ = 2442384. Its totient is φ = 620256.

The previous prime is 1240543. The next prime is 1240553. The reversal of 1240544 is 4450421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240543) 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 as a sum of consecutive naturals, namely, 19352 + ... + 19415.

It is an arithmetic number, because the mean of its divisors is an integer number (203532).

2^1240544 is an apocalyptic number.

It is an amenable number.

1240544 is a deficient number, since it is larger than the sum of its proper divisors (1201840).

1240544 is an equidigital number, since it uses as much as digits as its factorization.

1240544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38777 (or 38769 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1240544 is about 1113.7971089925. The cubic root of 1240544 is about 107.4494155376.

Adding to 1240544 its reverse (4450421), we get a palindrome (5690965).

The spelling of 1240544 in words is "one million, two hundred forty thousand, five hundred forty-four".