2189574270 has 96 divisors (see below), whose sum is σ = 6208675200. Its totient is φ = 532127232.

The previous prime is 2189574251. The next prime is 2189574293. The reversal of 2189574270 is 724759812.

It is a happy number.

2189574270 is a `hidden beast` number, since 2 + 1 + 8 + 9 + 574 + 2 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80586 + ... + 104274.

It is an arithmetic number, because the mean of its divisors is an integer number (64673700).

Almost surely, 2^2189574270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189574270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3104337600).

2189574270 is an abundant number, since it is smaller than the sum of its proper divisors (4019100930).

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

2189574270 is a wasteful number, since it uses less digits than its factorization.

2189574270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23794 (or 23791 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 2189574270 is about 46792.8869594514. The cubic root of 2189574270 is about 1298.5337057355.

The spelling of 2189574270 in words is "two billion, one hundred eighty-nine million, five hundred seventy-four thousand, two hundred seventy".