1240034207 has 4 divisors (see below), whose sum is σ = 1240450416. Its totient is φ = 1239618000.

The previous prime is 1240034203. The next prime is 1240034209. The reversal of 1240034207 is 7024300421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7024300421 = 53239 ⋅131939.

It is a cyclic number.

It is not a de Polignac number, because 1240034207 - 2² = 1240034203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240034203) 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 3 ways as a sum of consecutive naturals, for example, 203603 + ... + 209604.

It is an arithmetic number, because the mean of its divisors is an integer number (310112604).

Almost surely, 2^1240034207 is an apocalyptic number.

1240034207 is a deficient number, since it is larger than the sum of its proper divisors (416209).

1240034207 is an equidigital number, since it uses as much as digits as its factorization.

1240034207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416208.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 1240034207 is about 35214.1194267300. The cubic root of 1240034207 is about 1074.3469498896.

Adding to 1240034207 its reverse (7024300421), we get a palindrome (8264334628).

The spelling of 1240034207 in words is "one billion, two hundred forty million, thirty-four thousand, two hundred seven".