844732980 has 216 divisors, whose sum is σ = 3171796992. Its totient is φ = 178184448.

The previous prime is 844732957. The next prime is 844732991. The reversal of 844732980 is 89237448.

844732980 is a `hidden beast` number, since 84 + 473 + 29 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 210957 + ... + 214923.

Almost surely, 2^844732980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844732980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585898496).

844732980 is an abundant number, since it is smaller than the sum of its proper divisors (2327064012).

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

844732980 is a wasteful number, since it uses less digits than its factorization.

844732980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015 (or 3997 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 844732980 is about 29064.2904609763. The cubic root of 844732980 is about 945.3076012159.

The spelling of 844732980 in words is "eight hundred forty-four million, seven hundred thirty-two thousand, nine hundred eighty".