2289121970 has 16 divisors (see below), whose sum is σ = 4124570328. Its totient is φ = 914726400.

The previous prime is 2289121969. The next prime is 2289121999. The reversal of 2289121970 is 791219822.

It can be written as a sum of positive squares in 4 ways, for example, as 2288569921 + 552049 = 47839^2 + 743^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104831 + ... + 124770.

Almost surely, 2^2289121970 is an apocalyptic number.

2289121970 is a deficient number, since it is larger than the sum of its proper divisors (1835448358).

2289121970 is a wasteful number, since it uses less digits than its factorization.

2289121970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230605.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 2289121970 is about 47844.7695155907. The cubic root of 2289121970 is about 1317.9218082735.

The spelling of 2289121970 in words is "two billion, two hundred eighty-nine million, one hundred twenty-one thousand, nine hundred seventy".