2440143 has 6 divisors (see below), whose sum is σ = 3524664. Its totient is φ = 1626756.

The previous prime is 2440127. The next prime is 2440153. The reversal of 2440143 is 3410442.

It is not a de Polignac number, because 2440143 - 2⁴ = 2440127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135555 + ... + 135572.

It is an arithmetic number, because the mean of its divisors is an integer number (587444).

2^2440143 is an apocalyptic number.

2440143 is a deficient number, since it is larger than the sum of its proper divisors (1084521).

2440143 is a wasteful number, since it uses less digits than its factorization.

2440143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271133 (or 271130 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2440143 is about 1562.0957076953. The cubic root of 2440143 is about 134.6289398888.

Adding to 2440143 its reverse (3410442), we get a palindrome (5850585).

Subtracting 2440143 from its reverse (3410442), we obtain a cube (970299 = 99³).

The spelling of 2440143 in words is "two million, four hundred forty thousand, one hundred forty-three".