2400089 has 2 divisors, whose sum is σ = 2400090. Its totient is φ = 2400088.

The previous prime is 2400067. The next prime is 2400107. The reversal of 2400089 is 9800042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2274064 + 126025 = 1508^2 + 355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2400089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2400019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200044 + 1200045.

It is an arithmetic number, because the mean of its divisors is an integer number (1200045).

2^2400089 is an apocalyptic number.

It is an amenable number.

2400089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400089 is an equidigital number, since it uses as much as digits as its factorization.

2400089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2400089 is about 1549.2220628432. Note that the first 3 decimals coincide. The cubic root of 2400089 is about 133.8882449830. Note that the first 3 decimals are identical.

The spelling of 2400089 in words is "two million, four hundred thousand, eighty-nine".