4002143442 has 32 divisors (see below), whose sum is σ = 8740851264. Its totient is φ = 1211534400.

The previous prime is 4002143437. The next prime is 4002143479. The reversal of 4002143442 is 2443412004.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 35392 + ... + 96212.

It is an arithmetic number, because the mean of its divisors is an integer number (273151602).

Almost surely, 2^4002143442 is an apocalyptic number.

4002143442 is an abundant number, since it is smaller than the sum of its proper divisors (4738707822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4002143442 is a wasteful number, since it uses less digits than its factorization.

4002143442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61834.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4002143442 is about 63262.4963307646. The cubic root of 4002143442 is about 1587.6845431775.

Adding to 4002143442 its reverse (2443412004), we get a palindrome (6445555446).

The spelling of 4002143442 in words is "four billion, two million, one hundred forty-three thousand, four hundred forty-two".