1240484827 has 2 divisors, whose sum is σ = 1240484828. Its totient is φ = 1240484826.

The previous prime is 1240484821. The next prime is 1240484893. The reversal of 1240484827 is 7284840421.

It is a weak prime.

It is an emirp because it is prime and its reverse (7284840421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1240484827 - 2²³ = 1232096219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1240484827.

It is not a weakly prime, because it can be changed into another prime (1240484821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620242413 + 620242414.

It is an arithmetic number, because the mean of its divisors is an integer number (620242414).

Almost surely, 2^1240484827 is an apocalyptic number.

1240484827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240484827 is an equidigital number, since it uses as much as digits as its factorization.

1240484827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 114688, while the sum is 40.

The square root of 1240484827 is about 35220.5171313540. The cubic root of 1240484827 is about 1074.4770709216.

The spelling of 1240484827 in words is "one billion, two hundred forty million, four hundred eighty-four thousand, eight hundred twenty-seven".