2189674473 has 16 divisors (see below), whose sum is σ = 3337506816. Its totient is φ = 1250920080.

The previous prime is 2189674453. The next prime is 2189674499. The reversal of 2189674473 is 3744769812.

It is not a de Polignac number, because 2189674473 - 2⁹ = 2189673961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2189674453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87678 + ... + 109848.

It is an arithmetic number, because the mean of its divisors is an integer number (208594176).

Almost surely, 2^2189674473 is an apocalyptic number.

It is an amenable number.

2189674473 is a deficient number, since it is larger than the sum of its proper divisors (1147832343).

2189674473 is a wasteful number, since it uses less digits than its factorization.

2189674473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26884.

The product of its digits is 2032128, while the sum is 51.

The square root of 2189674473 is about 46793.9576548084. The cubic root of 2189674473 is about 1298.5535139984.

It can be divided in two parts, 21896 and 74473, that added together give a palindrome (96369).

The spelling of 2189674473 in words is "two billion, one hundred eighty-nine million, six hundred seventy-four thousand, four hundred seventy-three".