1998175272 has 64 divisors (see below), whose sum is σ = 5095663680. Its totient is φ = 652810752.

The previous prime is 1998175187. The next prime is 1998175279. The reversal of 1998175272 is 2725718991.

1998175272 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1998175279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282078 + ... + 289074.

It is an arithmetic number, because the mean of its divisors is an integer number (79619745).

Almost surely, 2^1998175272 is an apocalyptic number.

1998175272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1998175272 is an abundant number, since it is smaller than the sum of its proper divisors (3097488408).

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

1998175272 is a wasteful number, since it uses less digits than its factorization.

1998175272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242 (or 7238 counting only the distinct ones).

The product of its digits is 635040, while the sum is 51.

The square root of 1998175272 is about 44700.9538153270. The cubic root of 1998175272 is about 1259.5377644364.

The spelling of 1998175272 in words is "one billion, nine hundred ninety-eight million, one hundred seventy-five thousand, two hundred seventy-two".