40042321144142 has 16 divisors (see below), whose sum is σ = 61461100788912. Its totient is φ = 19555299576960.

The previous prime is 40042321144141. The next prime is 40042321144237. The reversal of 40042321144142 is 24144112324004.

It is a super-2 number, since 2×40042321144142² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40042321144099 and 40042321144108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40042321144141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3777542 + ... + 9713622.

It is an arithmetic number, because the mean of its divisors is an integer number (3841318799307).

Almost surely, 2^{40042321144142} is an apocalyptic number.

40042321144142 is a deficient number, since it is larger than the sum of its proper divisors (21418779644770).

40042321144142 is a wasteful number, since it uses less digits than its factorization.

40042321144142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014563.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 40042321144142 its reverse (24144112324004), we get a palindrome (64186433468146).

The spelling of 40042321144142 in words is "forty trillion, forty-two billion, three hundred twenty-one million, one hundred forty-four thousand, one hundred forty-two".