2190473289 has 6 divisors (see below), whose sum is σ = 3164016986. Its totient is φ = 1460315520.

The previous prime is 2190473281. The next prime is 2190473317. The reversal of 2190473289 is 9823740912.

It can be written as a sum of positive squares in only one way, i.e., 2190240000 + 233289 = 46800^2 + 483^2 .

It is not a de Polignac number, because 2190473289 - 2³ = 2190473281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2190473281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121692952 + ... + 121692969.

Almost surely, 2^2190473289 is an apocalyptic number.

It is an amenable number.

2190473289 is a deficient number, since it is larger than the sum of its proper divisors (973543697).

2190473289 is a wasteful number, since it uses less digits than its factorization.

2190473289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243385927 (or 243385924 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2190473289 is about 46802.4923374813. The cubic root of 2190473289 is about 1298.7114034049.

The spelling of 2190473289 in words is "two billion, one hundred ninety million, four hundred seventy-three thousand, two hundred eighty-nine".