4245989249 has 4 divisors (see below), whose sum is σ = 4252916436. Its totient is φ = 4239062064.

The previous prime is 4245989243. The next prime is 4245989273. The reversal of 4245989249 is 9429895424.

4245989249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1293697024 + 2952292225 = 35968^2 + 54335^2 .

It is a cyclic number.

It is not a de Polignac number, because 4245989249 - 2⁸ = 4245988993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4245989194 and 4245989203.

It is not an unprimeable number, because it can be changed into a prime (4245989243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3462674 + ... + 3463899.

It is an arithmetic number, because the mean of its divisors is an integer number (1063229109).

Almost surely, 2^4245989249 is an apocalyptic number.

It is an amenable number.

4245989249 is a deficient number, since it is larger than the sum of its proper divisors (6927187).

4245989249 is an equidigital number, since it uses as much as digits as its factorization.

4245989249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6927186.

The product of its digits is 7464960, while the sum is 56.

The square root of 4245989249 is about 65161.2557352910. The cubic root of 4245989249 is about 1619.2962000233.

The spelling of 4245989249 in words is "four billion, two hundred forty-five million, nine hundred eighty-nine thousand, two hundred forty-nine".