1789248849 has 8 divisors (see below), whose sum is σ = 2450142720. Its totient is φ = 1160593776.

The previous prime is 1789248833. The next prime is 1789248859. The reversal of 1789248849 is 9488429871.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1789248849 - 2⁴ = 1789248833 is a prime.

It is a super-2 number, since 2×1789248849² = 6402822887295649602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1789248792 and 1789248801.

It is not an unprimeable number, because it can be changed into a prime (1789248859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8059569 + ... + 8059790.

It is an arithmetic number, because the mean of its divisors is an integer number (306267840).

Almost surely, 2^1789248849 is an apocalyptic number.

It is an amenable number.

1789248849 is a deficient number, since it is larger than the sum of its proper divisors (660893871).

1789248849 is a wasteful number, since it uses less digits than its factorization.

1789248849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16119399.

The product of its digits is 9289728, while the sum is 60.

The square root of 1789248849 is about 42299.5135787635. The cubic root of 1789248849 is about 1214.0136844624.

The spelling of 1789248849 in words is "one billion, seven hundred eighty-nine million, two hundred forty-eight thousand, eight hundred forty-nine".