1998473068 has 24 divisors (see below), whose sum is σ = 3561546240. Its totient is φ = 981007440.

The previous prime is 1998473047. The next prime is 1998473077. The reversal of 1998473068 is 8603748991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53155 + ... + 82597.

It is an arithmetic number, because the mean of its divisors is an integer number (148397760).

Almost surely, 2^1998473068 is an apocalyptic number.

It is an amenable number.

1998473068 is a deficient number, since it is larger than the sum of its proper divisors (1563073172).

1998473068 is a wasteful number, since it uses less digits than its factorization.

1998473068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29757 (or 29755 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 1998473068 is about 44704.2846716061. The cubic root of 1998473068 is about 1259.6003326340.

The spelling of 1998473068 in words is "one billion, nine hundred ninety-eight million, four hundred seventy-three thousand, sixty-eight".