2142745008 has 80 divisors (see below), whose sum is σ = 5960511360. Its totient is φ = 660825088.

The previous prime is 2142744977. The next prime is 2142745013. The reversal of 2142745008 is 8005472412.

It is a self number, because there is not a number n which added to its sum of digits gives 2142745008.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25891 + ... + 70397.

It is an arithmetic number, because the mean of its divisors is an integer number (74506392).

Almost surely, 2^2142745008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142745008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2980255680).

2142745008 is an abundant number, since it is smaller than the sum of its proper divisors (3817766352).

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

2142745008 is a wasteful number, since it uses less digits than its factorization.

2142745008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44594 (or 44588 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 2142745008 is about 46289.7937778945. The cubic root of 2142745008 is about 1289.2095006656.

The spelling of 2142745008 in words is "two billion, one hundred forty-two million, seven hundred forty-five thousand, eight".