2400009889 has 2 divisors, whose sum is σ = 2400009890. Its totient is φ = 2400009888.

The previous prime is 2400009883. The next prime is 2400009917. The reversal of 2400009889 is 9889000042.

It is a happy number.

2400009889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2398550625 + 1459264 = 48975^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400009889 - 2⁷ = 2400009761 is a prime.

It is not a weakly prime, because it can be changed into another prime (2400009883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200004944 + 1200004945.

It is an arithmetic number, because the mean of its divisors is an integer number (1200004945).

Almost surely, 2^2400009889 is an apocalyptic number.

It is an amenable number.

2400009889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400009889 is an equidigital number, since it uses as much as digits as its factorization.

2400009889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 2400009889 is about 48989.8957847432. The cubic root of 2400009889 is about 1338.8677390569.

The spelling of 2400009889 in words is "two billion, four hundred million, nine thousand, eight hundred eighty-nine".