12434051240 has 32 divisors (see below), whose sum is σ = 30128663880. Its totient is φ = 4591034112.

The previous prime is 12434051239. The next prime is 12434051251. The reversal of 12434051240 is 4215043421.

It can be written as a sum of positive squares in 4 ways, for example, as 5981784964 + 6452266276 = 77342^2 + 80326^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11955299 + ... + 11956338.

Almost surely, 2^12434051240 is an apocalyptic number.

12434051240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12434051240 is an abundant number, since it is smaller than the sum of its proper divisors (17694612640).

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

12434051240 is a wasteful number, since it uses less digits than its factorization.

12434051240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23911661 (or 23911657 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 12434051240 its reverse (4215043421), we get a palindrome (16649094661).

The spelling of 12434051240 in words is "twelve billion, four hundred thirty-four million, fifty-one thousand, two hundred forty".