2142729104 has 20 divisors (see below), whose sum is σ = 4370040240. Its totient is φ = 1014976800.

The previous prime is 2142729101. The next prime is 2142729203. The reversal of 2142729104 is 4019272412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2142729101) 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, 3523922 + ... + 3524529.

It is an arithmetic number, because the mean of its divisors is an integer number (218502012).

Almost surely, 2^2142729104 is an apocalyptic number.

It is an amenable number.

2142729104 is an abundant number, since it is smaller than the sum of its proper divisors (2227311136).

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

2142729104 is a wasteful number, since it uses less digits than its factorization.

2142729104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7048478 (or 7048472 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2142729104 is about 46289.6219902474. The cubic root of 2142729104 is about 1289.2063110438.

The spelling of 2142729104 in words is "two billion, one hundred forty-two million, seven hundred twenty-nine thousand, one hundred four".