43140440142 has 24 divisors (see below), whose sum is σ = 93662904816. Its totient is φ = 14350615776.

The previous prime is 43140440141. The next prime is 43140440179. The reversal of 43140440142 is 24104404134.

43140440142 is a `hidden beast` number, since 43 + 1 + 40 + 440 + 142 = 666.

It is a super-2 number, since 2×43140440142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140440141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2451903 + ... + 2469434.

It is an arithmetic number, because the mean of its divisors is an integer number (3902621034).

Almost surely, 2^43140440142 is an apocalyptic number.

43140440142 is an abundant number, since it is smaller than the sum of its proper divisors (50522464674).

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

43140440142 is a wasteful number, since it uses less digits than its factorization.

43140440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921832 (or 4921829 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 43140440142 its reverse (24104404134), we get a palindrome (67244844276).

The spelling of 43140440142 in words is "forty-three billion, one hundred forty million, four hundred forty thousand, one hundred forty-two".