980780020 has 72 divisors (see below), whose sum is σ = 2312335872. Its totient is φ = 349018560.

The previous prime is 980780011. The next prime is 980780051. The reversal of 980780020 is 20087089.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109429 + ... + 118051.

It is an arithmetic number, because the mean of its divisors is an integer number (32115776).

Almost surely, 2^980780020 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 980780020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156167936).

980780020 is an abundant number, since it is smaller than the sum of its proper divisors (1331555852).

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

980780020 is a wasteful number, since it uses less digits than its factorization.

980780020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8701 (or 8688 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 980780020 is about 31317.4076194055. The cubic root of 980780020 is about 993.5518507395.

The spelling of 980780020 in words is "nine hundred eighty million, seven hundred eighty thousand, twenty".