1240717027 has 12 divisors (see below), whose sum is σ = 1367166888. Its totient is φ = 1116656000.

The previous prime is 1240717013. The next prime is 1240717033. The reversal of 1240717027 is 7207170421.

It is a de Polignac number, because none of the positive numbers 2^k-1240717027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240717027.

It is not an unprimeable number, because it can be changed into a prime (1240717057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106683 + ... + 117739.

It is an arithmetic number, because the mean of its divisors is an integer number (113930574).

Almost surely, 2^1240717027 is an apocalyptic number.

1240717027 is a deficient number, since it is larger than the sum of its proper divisors (126449861).

1240717027 is a wasteful number, since it uses less digits than its factorization.

1240717027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270 (or 11169 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 1240717027 is about 35223.8133511975. The cubic root of 1240717027 is about 1074.5441086918.

Adding to 1240717027 its reverse (7207170421), we get a palindrome (8447887448).

The spelling of 1240717027 in words is "one billion, two hundred forty million, seven hundred seventeen thousand, twenty-seven".