4020406143 has 64 divisors (see below), whose sum is σ = 6299596800. Its totient is φ = 2258380800.

The previous prime is 4020406139. The next prime is 4020406153. The reversal of 4020406143 is 3416040204.

It is not a de Polignac number, because 4020406143 - 2² = 4020406139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020406153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3089593 + ... + 3090893.

It is an arithmetic number, because the mean of its divisors is an integer number (98431200).

Almost surely, 2^4020406143 is an apocalyptic number.

4020406143 is a deficient number, since it is larger than the sum of its proper divisors (2279190657).

4020406143 is a wasteful number, since it uses less digits than its factorization.

4020406143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4020406143 is about 63406.6727009074. The cubic root of 4020406143 is about 1590.0958689871.

Adding to 4020406143 its reverse (3416040204), we get a palindrome (7436446347).

The spelling of 4020406143 in words is "four billion, twenty million, four hundred six thousand, one hundred forty-three".