1980712328 has 32 divisors (see below), whose sum is σ = 4268116800. Its totient is φ = 844130112.

The previous prime is 1980712319. The next prime is 1980712333. The reversal of 1980712328 is 8232170891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88775 + ... + 108822.

It is an arithmetic number, because the mean of its divisors is an integer number (133378650).

Almost surely, 2^1980712328 is an apocalyptic number.

It is an amenable number.

1980712328 is an abundant number, since it is smaller than the sum of its proper divisors (2287404472).

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

1980712328 is a wasteful number, since it uses less digits than its factorization.

1980712328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197789 (or 197785 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1980712328 is about 44505.1943934638. The cubic root of 1980712328 is about 1255.8578026774.

The spelling of 1980712328 in words is "one billion, nine hundred eighty million, seven hundred twelve thousand, three hundred twenty-eight".