2189412072 has 128 divisors (see below), whose sum is σ = 6327504000. Its totient is φ = 700600320.

The previous prime is 2189412059. The next prime is 2189412077. The reversal of 2189412072 is 2702149812.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2189412077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1208047 + ... + 1209857.

It is an arithmetic number, because the mean of its divisors is an integer number (49433625).

Almost surely, 2^2189412072 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 2189412072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3163752000).

2189412072 is an abundant number, since it is smaller than the sum of its proper divisors (4138091928).

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

2189412072 is a wasteful number, since it uses less digits than its factorization.

2189412072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2189412072 is about 46791.1537793203. The cubic root of 2189412072 is about 1298.5016409374.

The spelling of 2189412072 in words is "two billion, one hundred eighty-nine million, four hundred twelve thousand, seventy-two".