331498980 has 120 divisors (see below), whose sum is σ = 1101188088. Its totient is φ = 83192832.

The previous prime is 331498969. The next prime is 331498987. The reversal of 331498980 is 89894133.

It can be written as a sum of positive squares in 4 ways, for example, as 4901796 + 326597184 = 2214^2 + 18072^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (331498987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21522 + ... + 33558.

Almost surely, 2^331498980 is an apocalyptic number.

331498980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331498980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550594044).

331498980 is an abundant number, since it is smaller than the sum of its proper divisors (769689108).

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

331498980 is a wasteful number, since it uses less digits than its factorization.

331498980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12075 (or 12064 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 331498980 is about 18207.1134450247. The cubic root of 331498980 is about 692.0870645686.

The spelling of 331498980 in words is "three hundred thirty-one million, four hundred ninety-eight thousand, nine hundred eighty".