2143619628 has 12 divisors (see below), whose sum is σ = 5001779160. Its totient is φ = 714539872.

The previous prime is 2143619603. The next prime is 2143619629. The reversal of 2143619628 is 8269163412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2143619628.

It is not an unprimeable number, because it can be changed into a prime (2143619629) 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, 89317473 + ... + 89317496.

It is an arithmetic number, because the mean of its divisors is an integer number (416814930).

Almost surely, 2^2143619628 is an apocalyptic number.

It is an amenable number.

2143619628 is an abundant number, since it is smaller than the sum of its proper divisors (2858159532).

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

2143619628 is a wasteful number, since it uses less digits than its factorization.

2143619628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178634976 (or 178634974 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 2143619628 is about 46299.2400369596. The cubic root of 2143619628 is about 1289.3848855151.

The spelling of 2143619628 in words is "two billion, one hundred forty-three million, six hundred nineteen thousand, six hundred twenty-eight".