40404142143 has 32 divisors (see below), whose sum is σ = 63025401600. Its totient is φ = 25511524128.

The previous prime is 40404142109. The next prime is 40404142187. The reversal of 40404142143 is 34124140404.

40404142143 is a `hidden beast` number, since 40 + 404 + 1 + 4 + 214 + 3 = 666.

It is not a de Polignac number, because 40404142143 - 2¹⁷ = 40404011071 is a prime.

It is a super-3 number, since 3×40404142143³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40404142193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2447505 + ... + 2463957.

It is an arithmetic number, because the mean of its divisors is an integer number (1969543800).

Almost surely, 2^40404142143 is an apocalyptic number.

40404142143 is a deficient number, since it is larger than the sum of its proper divisors (22621259457).

40404142143 is a wasteful number, since it uses less digits than its factorization.

40404142143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21268 (or 21262 counting only the distinct ones).

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

Adding to 40404142143 its reverse (34124140404), we get a palindrome (74528282547).

The spelling of 40404142143 in words is "forty billion, four hundred four million, one hundred forty-two thousand, one hundred forty-three".