2004435889 has 2 divisors, whose sum is σ = 2004435890. Its totient is φ = 2004435888.

The previous prime is 2004435883. The next prime is 2004435893. The reversal of 2004435889 is 9885344002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1152263025 + 852172864 = 33945^2 + 29192^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004435889 - 2¹³ = 2004427697 is a prime.

It is a super-2 number, since 2×2004435889² = 8035526466222440642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2004435883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002217944 + 1002217945.

It is an arithmetic number, because the mean of its divisors is an integer number (1002217945).

Almost surely, 2^2004435889 is an apocalyptic number.

It is an amenable number.

2004435889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004435889 is an equidigital number, since it uses as much as digits as its factorization.

2004435889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 2004435889 is about 44770.9268275742. The cubic root of 2004435889 is about 1260.8518404075.

The spelling of 2004435889 in words is "two billion, four million, four hundred thirty-five thousand, eight hundred eighty-nine".