982221660 has 192 divisors, whose sum is σ = 3564288000. Its totient is φ = 224465472.

The previous prime is 982221649. The next prime is 982221661. The reversal of 982221660 is 66122289.

It is a happy number.

982221660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982221661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 182569 + ... + 187871.

It is an arithmetic number, because the mean of its divisors is an integer number (18564000).

Almost surely, 2^982221660 is an apocalyptic number.

982221660 is a gapful number since it is divisible by the number (90) 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 982221660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782144000).

982221660 is an abundant number, since it is smaller than the sum of its proper divisors (2582066340).

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

982221660 is a wasteful number, since it uses less digits than its factorization.

982221660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342 (or 5320 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 982221660 is about 31340.4157598459. The cubic root of 982221660 is about 994.0384168185.

The spelling of 982221660 in words is "nine hundred eighty-two million, two hundred twenty-one thousand, six hundred sixty".