1998313576 has 16 divisors (see below), whose sum is σ = 4282100640. Its totient is φ = 856420080.

The previous prime is 1998313573. The next prime is 1998313589. The reversal of 1998313576 is 6753138991.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1998313573) 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 3 ways as a sum of consecutive naturals, for example, 17842030 + ... + 17842141.

It is an arithmetic number, because the mean of its divisors is an integer number (267631290).

Almost surely, 2^1998313576 is an apocalyptic number.

It is an amenable number.

1998313576 is an abundant number, since it is smaller than the sum of its proper divisors (2283787064).

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

1998313576 is a wasteful number, since it uses less digits than its factorization.

1998313576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35684184 (or 35684180 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 52.

The square root of 1998313576 is about 44702.5007801577. The cubic root of 1998313576 is about 1259.5668234641.

The spelling of 1998313576 in words is "one billion, nine hundred ninety-eight million, three hundred thirteen thousand, five hundred seventy-six".