982531620 has 192 divisors, whose sum is σ = 3537676800. Its totient is φ = 224508672.

The previous prime is 982531603. The next prime is 982531621. The reversal of 982531620 is 26135289.

982531620 is a `hidden beast` number, since 9 + 8 + 25 + 3 + 1 + 620 = 666.

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 (982531621) 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 63 ways as a sum of consecutive naturals, for example, 304576 + ... + 307784.

It is an arithmetic number, because the mean of its divisors is an integer number (18425400).

Almost surely, 2^982531620 is an apocalyptic number.

982531620 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 982531620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768838400).

982531620 is an abundant number, since it is smaller than the sum of its proper divisors (2555145180).

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

982531620 is a wasteful number, since it uses less digits than its factorization.

982531620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246 (or 3226 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 982531620 is about 31345.3604222379. The cubic root of 982531620 is about 994.1429688273.

The spelling of 982531620 in words is "nine hundred eighty-two million, five hundred thirty-one thousand, six hundred twenty".