1980299328 has 84 divisors (see below), whose sum is σ = 6095006352. Its totient is φ = 565797120.

The previous prime is 1980299327. The next prime is 1980299429. The reversal of 1980299328 is 8239920891.

It is a tau number, because it is divible by the number of its divisors (84).

It is not an unprimeable number, because it can be changed into a prime (1980299327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95838 + ... + 114653.

Almost surely, 2^1980299328 is an apocalyptic number.

It is an amenable number.

1980299328 is an abundant number, since it is smaller than the sum of its proper divisors (4114707024).

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

1980299328 is a wasteful number, since it uses less digits than its factorization.

1980299328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210520 (or 210503 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 1980299328 is about 44500.5542437395. The cubic root of 1980299328 is about 1255.7705099530.

The spelling of 1980299328 in words is "one billion, nine hundred eighty million, two hundred ninety-nine thousand, three hundred twenty-eight".