4049999489 has 2 divisors, whose sum is σ = 4049999490. Its totient is φ = 4049999488.

The previous prime is 4049999483. The next prime is 4049999501. The reversal of 4049999489 is 9849999404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3770942464 + 279057025 = 61408^2 + 16705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4049999489 is a prime.

It is a super-2 number, since 2×4049999489² = 32804991721800522242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4049999483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2024999744 + 2024999745.

It is an arithmetic number, because the mean of its divisors is an integer number (2024999745).

Almost surely, 2^4049999489 is an apocalyptic number.

It is an amenable number.

4049999489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4049999489 is an equidigital number, since it uses as much as digits as its factorization.

4049999489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30233088, while the sum is 65.

The square root of 4049999489 is about 63639.6062919940. The cubic root of 4049999489 is about 1593.9877867346.

The spelling of 4049999489 in words is "four billion, forty-nine million, nine hundred ninety-nine thousand, four hundred eighty-nine".