43240400142 has 32 divisors (see below), whose sum is σ = 87976627200. Its totient is φ = 14164329408.

The previous prime is 43240400129. The next prime is 43240400153. The reversal of 43240400142 is 24100404234.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1101834 + ... + 1140402.

It is an arithmetic number, because the mean of its divisors is an integer number (2749269600).

Almost surely, 2^43240400142 is an apocalyptic number.

43240400142 is an abundant number, since it is smaller than the sum of its proper divisors (44736227058).

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

43240400142 is a wasteful number, since it uses less digits than its factorization.

43240400142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41800.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 43240400142 its reverse (24100404234), we get a palindrome (67340804376).

The spelling of 43240400142 in words is "forty-three billion, two hundred forty million, four hundred thousand, one hundred forty-two".