998740180 has 24 divisors (see below), whose sum is σ = 2098689768. Its totient is φ = 399241728.

The previous prime is 998740153. The next prime is 998740181. The reversal of 998740180 is 81047899.

It is a happy number.

998740180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 432964 + 998307216 = 658^2 + 31596^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 998740180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998740181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18072 + ... + 48208.

It is an arithmetic number, because the mean of its divisors is an integer number (87445407).

Almost surely, 2^998740180 is an apocalyptic number.

It is an amenable number.

998740180 is an abundant number, since it is smaller than the sum of its proper divisors (1099949588).

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

998740180 is a wasteful number, since it uses less digits than its factorization.

998740180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31803 (or 31801 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 998740180 is about 31602.8508207725. The cubic root of 998740180 is about 999.5798835269.

The spelling of 998740180 in words is "nine hundred ninety-eight million, seven hundred forty thousand, one hundred eighty".