40420331143 has 8 divisors (see below), whose sum is σ = 41375941376. Its totient is φ = 39465430200.

The previous prime is 40420331117. The next prime is 40420331153. The reversal of 40420331143 is 34113302404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40420331143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420331153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61113 + ... + 290818.

It is an arithmetic number, because the mean of its divisors is an integer number (5171992672).

Almost surely, 2^40420331143 is an apocalyptic number.

40420331143 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40420331143 is a deficient number, since it is larger than the sum of its proper divisors (955610233).

40420331143 is a wasteful number, since it uses less digits than its factorization.

40420331143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354645.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40420331143 its reverse (34113302404), we get a palindrome (74533633547).

The spelling of 40420331143 in words is "forty billion, four hundred twenty million, three hundred thirty-one thousand, one hundred forty-three".