2213954489 has 4 divisors (see below), whose sum is σ = 2344187124. Its totient is φ = 2083721856.

The previous prime is 2213954473. The next prime is 2213954503. The reversal of 2213954489 is 9844593122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1257908089 + 956046400 = 35467^2 + 30920^2 .

It is a cyclic number.

It is not a de Polignac number, because 2213954489 - 2⁴ = 2213954473 is a prime.

It is a super-2 number, since 2×2213954489² = 9803188958726502242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213954429) 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 3 ways as a sum of consecutive naturals, for example, 65116292 + ... + 65116325.

It is an arithmetic number, because the mean of its divisors is an integer number (586046781).

Almost surely, 2^2213954489 is an apocalyptic number.

It is an amenable number.

2213954489 is a deficient number, since it is larger than the sum of its proper divisors (130232635).

2213954489 is a wasteful number, since it uses less digits than its factorization.

2213954489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130232634.

The product of its digits is 622080, while the sum is 47.

The square root of 2213954489 is about 47052.6778090259. The cubic root of 2213954489 is about 1303.3355151501.

The spelling of 2213954489 in words is "two billion, two hundred thirteen million, nine hundred fifty-four thousand, four hundred eighty-nine".