2142869140 has 12 divisors (see below), whose sum is σ = 4500025236. Its totient is φ = 857147648.

The previous prime is 2142869137. The next prime is 2142869149. The reversal of 2142869140 is 419682412.

It can be written as a sum of positive squares in 2 ways, for example, as 1711642384 + 431226756 = 41372^2 + 20766^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2142869140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142869149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53571709 + ... + 53571748.

It is an arithmetic number, because the mean of its divisors is an integer number (375002103).

Almost surely, 2^2142869140 is an apocalyptic number.

2142869140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142869140 is an abundant number, since it is smaller than the sum of its proper divisors (2357156096).

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

2142869140 is a wasteful number, since it uses less digits than its factorization.

2142869140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107143466 (or 107143464 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2142869140 is about 46291.1345723995. The cubic root of 2142869140 is about 1289.2343953782.

The spelling of 2142869140 in words is "two billion, one hundred forty-two million, eight hundred sixty-nine thousand, one hundred forty".