2143142406 has 96 divisors (see below), whose sum is σ = 4959601920. Its totient is φ = 667699200.

The previous prime is 2143142371. The next prime is 2143142423. The reversal of 2143142406 is 6042413412.

It is a happy number.

2143142406 is a `hidden beast` number, since 214 + 3 + 1 + 42 + 406 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2143142406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2584800 + ... + 2585628.

It is an arithmetic number, because the mean of its divisors is an integer number (51662520).

Almost surely, 2^2143142406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143142406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479800960).

2143142406 is an abundant number, since it is smaller than the sum of its proper divisors (2816459514).

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

2143142406 is a wasteful number, since it uses less digits than its factorization.

2143142406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2143142406 is about 46294.0860801896. The cubic root of 2143142406 is about 1289.2891955750.

Adding to 2143142406 its reverse (6042413412), we get a palindrome (8185555818).

The spelling of 2143142406 in words is "two billion, one hundred forty-three million, one hundred forty-two thousand, four hundred six".