1980407276 has 12 divisors (see below), whose sum is σ = 3488973600. Its totient is φ = 983557680.

The previous prime is 1980407267. The next prime is 1980407279. The reversal of 1980407276 is 6727040891.

It is not an unprimeable number, because it can be changed into a prime (1980407279) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1660820 + ... + 1662011.

It is an arithmetic number, because the mean of its divisors is an integer number (290747800).

Almost surely, 2^1980407276 is an apocalyptic number.

It is an amenable number.

1980407276 is a deficient number, since it is larger than the sum of its proper divisors (1508566324).

1980407276 is a wasteful number, since it uses less digits than its factorization.

1980407276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322984 (or 3322982 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1980407276 is about 44501.7671109811. The cubic root of 1980407276 is about 1255.7933272868.

The spelling of 1980407276 in words is "one billion, nine hundred eighty million, four hundred seven thousand, two hundred seventy-six".