1489435749 has 8 divisors (see below), whose sum is σ = 2206571520. Its totient is φ = 992957148.

The previous prime is 1489435729. The next prime is 1489435751. The reversal of 1489435749 is 9475349841.

It is not a de Polignac number, because 1489435749 - 2²¹ = 1487338597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1489435695 and 1489435704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489435709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27582117 + ... + 27582170.

It is an arithmetic number, because the mean of its divisors is an integer number (275821440).

Almost surely, 2^1489435749 is an apocalyptic number.

It is an amenable number.

1489435749 is a deficient number, since it is larger than the sum of its proper divisors (717135771).

1489435749 is an equidigital number, since it uses as much as digits as its factorization.

1489435749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55164296 (or 55164290 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 1489435749 is about 38593.2085864858. The cubic root of 1489435749 is about 1142.0205647835.

The spelling of 1489435749 in words is "one billion, four hundred eighty-nine million, four hundred thirty-five thousand, seven hundred forty-nine".