1234040430042 has 96 divisors (see below), whose sum is σ = 3219061547520. Its totient is φ = 333764802720.

The previous prime is 1234040430041. The next prime is 1234040430097. The reversal of 1234040430042 is 2400340404321.

It is a happy number.

1234040430042 is a `hidden beast` number, since 12 + 340 + 4 + 0 + 4 + 300 + 4 + 2 = 666.

It is a super-2 number, since 2×1234040430042² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1234040429988 and 1234040430015.

It is not an unprimeable number, because it can be changed into a prime (1234040430041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2870617 + ... + 3272387.

It is an arithmetic number, because the mean of its divisors is an integer number (33531891120).

Almost surely, 2^{1234040430042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234040430042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609530773760).

1234040430042 is an abundant number, since it is smaller than the sum of its proper divisors (1985021117478).

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

1234040430042 is a wasteful number, since it uses less digits than its factorization.

1234040430042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403088 (or 403085 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 1234040430042 its reverse (2400340404321), we get a palindrome (3634380834363).

The spelling of 1234040430042 in words is "one trillion, two hundred thirty-four billion, forty million, four hundred thirty thousand, forty-two".