1240434711 has 12 divisors (see below), whose sum is σ = 1792044280. Its totient is φ = 826815600.

The previous prime is 1240434709. The next prime is 1240434743. The reversal of 1240434711 is 1174340421.

1240434711 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1240434711 - 2¹ = 1240434709 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 (1240434211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99420 + ... + 111198.

Almost surely, 2^1240434711 is an apocalyptic number.

1240434711 is a deficient number, since it is larger than the sum of its proper divisors (551609569).

1240434711 is a wasteful number, since it uses less digits than its factorization.

1240434711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23486 (or 23483 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1240434711 is about 35219.8056638591. The cubic root of 1240434711 is about 1074.4626009829.

The spelling of 1240434711 in words is "one billion, two hundred forty million, four hundred thirty-four thousand, seven hundred eleven".