2249889489 has 27 divisors (see below), whose sum is σ = 3303958203. Its totient is φ = 1475356032.

The previous prime is 2249889469. The next prime is 2249889493. The reversal of 2249889489 is 9849889422.

The square root of 2249889489 is 47433.

It is a perfect power (a square), and thus also a powerful number.

2249889489 is a `hidden beast` number, since 22 + 498 + 89 + 48 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1010286225 + 1239603264 = 31785^2 + 35208^2 .

It is not a de Polignac number, because 2249889489 - 2⁵ = 2249889457 is a prime.

It is a super-2 number, since 2×2249889489² = 10124005425425362242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2249889469) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13802922 + ... + 13803084.

Almost surely, 2^2249889489 is an apocalyptic number.

2249889489 is the 47433-rd square number.

2249889489 is the 23717-th centered octagonal number.

It is an amenable number.

2249889489 is a deficient number, since it is larger than the sum of its proper divisors (1054068714).

2249889489 is an frugal number, since it uses more digits than its factorization.

2249889489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 263 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 63.

The cubic root of 2249889489 is about 1310.3492433642.

The spelling of 2249889489 in words is "two billion, two hundred forty-nine million, eight hundred eighty-nine thousand, four hundred eighty-nine".