2143142040 has 128 divisors (see below), whose sum is σ = 6950059200. Its totient is φ = 525557760.

The previous prime is 2143142033. The next prime is 2143142041. The reversal of 2143142040 is 402413412.

It is a junction number, because it is equal to n+sod(n) for n = 2143141998 and 2143142016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143142041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435916 + ... + 440804.

Almost surely, 2^2143142040 is an apocalyptic number.

2143142040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143142040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3475029600).

2143142040 is an abundant number, since it is smaller than the sum of its proper divisors (4806917160).

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

2143142040 is a wasteful number, since it uses less digits than its factorization.

2143142040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5197 (or 5193 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2143142040 is about 46294.0821272007. The cubic root of 2143142040 is about 1289.2891221812.

Adding to 2143142040 its reverse (402413412), we get a palindrome (2545555452).

The spelling of 2143142040 in words is "two billion, one hundred forty-three million, one hundred forty-two thousand, forty".