1240512535434 has 8 divisors (see below), whose sum is σ = 2481025070880. Its totient is φ = 413504178476.

The previous prime is 1240512535403. The next prime is 1240512535439. The reversal of 1240512535434 is 4345352150421.

It is a sphenic number, since it is the product of 3 distinct primes.

1240512535434 is an admirable number.

It is a super-2 number, since 2×1240512535434² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1240512535392 and 1240512535401.

It is not an unprimeable number, because it can be changed into a prime (1240512535439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103376044614 + ... + 103376044625.

It is an arithmetic number, because the mean of its divisors is an integer number (310128133860).

Almost surely, 2^{1240512535434} is an apocalyptic number.

1240512535434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240512535434 is a wasteful number, since it uses less digits than its factorization.

1240512535434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206752089244.

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 1240512535434 its reverse (4345352150421), we get a palindrome (5585864685855).

The spelling of 1240512535434 in words is "one trillion, two hundred forty billion, five hundred twelve million, five hundred thirty-five thousand, four hundred thirty-four".