40144432141 has 4 divisors (see below), whose sum is σ = 43793925984. Its totient is φ = 36494938300.

The previous prime is 40144432109. The next prime is 40144432171. The reversal of 40144432141 is 14123444104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40144432141 - 2⁵ = 40144432109 is a prime.

It is a super-2 number, since 2×40144432141² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144432171) 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 3 ways as a sum of consecutive naturals, for example, 1824746905 + ... + 1824746926.

It is an arithmetic number, because the mean of its divisors is an integer number (10948481496).

Almost surely, 2^40144432141 is an apocalyptic number.

It is an amenable number.

40144432141 is a deficient number, since it is larger than the sum of its proper divisors (3649493843).

40144432141 is a wasteful number, since it uses less digits than its factorization.

40144432141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649493842.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 40144432141 its reverse (14123444104), we get a palindrome (54267876245).

The spelling of 40144432141 in words is "forty billion, one hundred forty-four million, four hundred thirty-two thousand, one hundred forty-one".