2240454989 has 2 divisors, whose sum is σ = 2240454990. Its totient is φ = 2240454988.

The previous prime is 2240454947. The next prime is 2240455003. The reversal of 2240454989 is 9894540422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2168764900 + 71690089 = 46570^2 + 8467^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240454989 - 2¹⁶ = 2240389453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2240454919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120227494 + 1120227495.

It is an arithmetic number, because the mean of its divisors is an integer number (1120227495).

Almost surely, 2^2240454989 is an apocalyptic number.

It is an amenable number.

2240454989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240454989 is an equidigital number, since it uses as much as digits as its factorization.

2240454989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 2240454989 is about 47333.4447193525. Note that the first 3 decimals coincide. The cubic root of 2240454989 is about 1308.5151073155.

The spelling of 2240454989 in words is "two billion, two hundred forty million, four hundred fifty-four thousand, nine hundred eighty-nine".