1798216049 has 8 divisors (see below), whose sum is σ = 2056618368. Its totient is φ = 1540192320.

The previous prime is 1798216033. The next prime is 1798216051. The reversal of 1798216049 is 9406128971.

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

It is a cyclic number.

It is not a de Polignac number, because 1798216049 - 2⁴ = 1798216033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1798215994 and 1798216012.

It is not an unprimeable number, because it can be changed into a prime (1798246049) 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, 84392 + ... + 103529.

It is an arithmetic number, because the mean of its divisors is an integer number (257077296).

Almost surely, 2^1798216049 is an apocalyptic number.

It is an amenable number.

1798216049 is a deficient number, since it is larger than the sum of its proper divisors (258402319).

1798216049 is a wasteful number, since it uses less digits than its factorization.

1798216049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189295.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 1798216049 is about 42405.3775953003. The cubic root of 1798216049 is about 1216.0384014538.

The spelling of 1798216049 in words is "one billion, seven hundred ninety-eight million, two hundred sixteen thousand, forty-nine".