4002857143 has 4 divisors (see below), whose sum is σ = 4095946888. Its totient is φ = 3909767400.

The previous prime is 4002857123. The next prime is 4002857191. The reversal of 4002857143 is 3417582004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4002857143 is a prime.

It is a super-2 number, since 2×4002857143² = 32045730614532244898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4002857099 and 4002857108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002857123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46544808 + ... + 46544893.

It is an arithmetic number, because the mean of its divisors is an integer number (1023986722).

Almost surely, 2^4002857143 is an apocalyptic number.

4002857143 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4002857143 is a deficient number, since it is larger than the sum of its proper divisors (93089745).

4002857143 is an equidigital number, since it uses as much as digits as its factorization.

4002857143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93089744.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 4002857143 is about 63268.1368699917. The cubic root of 4002857143 is about 1587.7789146655.

The spelling of 4002857143 in words is "four billion, two million, eight hundred fifty-seven thousand, one hundred forty-three".