1998517482 has 64 divisors (see below), whose sum is σ = 4912104960. Its totient is φ = 598300992.

The previous prime is 1998517463. The next prime is 1998517483. The reversal of 1998517482 is 2847158991.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

1998517482 is a modest number, since divided by 517482 gives 1998 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1998517483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12498 + ... + 64445.

It is an arithmetic number, because the mean of its divisors is an integer number (76751640).

Almost surely, 2^1998517482 is an apocalyptic number.

1998517482 is an abundant number, since it is smaller than the sum of its proper divisors (2913587478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1998517482 is a wasteful number, since it uses less digits than its factorization.

1998517482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77004 (or 76998 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 1998517482 is about 44704.7814221253. The cubic root of 1998517482 is about 1259.6096636704.

The spelling of 1998517482 in words is "one billion, nine hundred ninety-eight million, five hundred seventeen thousand, four hundred eighty-two".