1998468298 has 16 divisors (see below), whose sum is σ = 3292672320. Its totient is φ = 905484096.

The previous prime is 1998468287. The next prime is 1998468319. The reversal of 1998468298 is 8928648991.

It is a super-2 number, since 2×1998468298² = 7987751076222033608, which contains 22 as substring.

It is an unprimeable number.

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, 1142415 + ... + 1144162.

It is an arithmetic number, because the mean of its divisors is an integer number (205792020).

Almost surely, 2^1998468298 is an apocalyptic number.

1998468298 is a deficient number, since it is larger than the sum of its proper divisors (1294204022).

1998468298 is a wasteful number, since it uses less digits than its factorization.

1998468298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286621.

The product of its digits is 17915904, while the sum is 64.

The square root of 1998468298 is about 44704.2313209835. The cubic root of 1998468298 is about 1259.5993304859.

The spelling of 1998468298 in words is "one billion, nine hundred ninety-eight million, four hundred sixty-eight thousand, two hundred ninety-eight".