4389106449 has 96 divisors (see below), whose sum is σ = 7748235264. Its totient is φ = 2187077760.

The previous prime is 4389106441. The next prime is 4389106453. The reversal of 4389106449 is 9446019834.

It is a happy number.

It is not a de Polignac number, because 4389106449 - 2³ = 4389106441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4389106398 and 4389106407.

It is not an unprimeable number, because it can be changed into a prime (4389106441) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2546502 + ... + 2548224.

It is an arithmetic number, because the mean of its divisors is an integer number (80710784).

Almost surely, 2^4389106449 is an apocalyptic number.

4389106449 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4389106449 is a deficient number, since it is larger than the sum of its proper divisors (3359128815).

4389106449 is a wasteful number, since it uses less digits than its factorization.

4389106449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 4389106449 is about 66250.3316897357. The cubic root of 4389106449 is about 1637.2891027190.

The spelling of 4389106449 in words is "four billion, three hundred eighty-nine million, one hundred six thousand, four hundred forty-nine".