2440197289 has 4 divisors (see below), whose sum is σ = 2583738324. Its totient is φ = 2296656256.

The previous prime is 2440197251. The next prime is 2440197311. The reversal of 2440197289 is 9827910442.

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 2039877225 + 400320064 = 45165^2 + 20008^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440197289 - 2⁷ = 2440197161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2440197229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71770492 + ... + 71770525.

It is an arithmetic number, because the mean of its divisors is an integer number (645934581).

Almost surely, 2^2440197289 is an apocalyptic number.

It is an amenable number.

2440197289 is a deficient number, since it is larger than the sum of its proper divisors (143541035).

2440197289 is a wasteful number, since it uses less digits than its factorization.

2440197289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143541034.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 2440197289 is about 49398.3531000781. The cubic root of 2440197289 is about 1346.2993830244.

The spelling of 2440197289 in words is "two billion, four hundred forty million, one hundred ninety-seven thousand, two hundred eighty-nine".