1982407216 has 40 divisors (see below), whose sum is σ = 3885822720. Its totient is φ = 979653696.

The previous prime is 1982407187. The next prime is 1982407267. The reversal of 1982407216 is 6127042891.

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, 1223655 + ... + 1225273.

It is an arithmetic number, because the mean of its divisors is an integer number (97145568).

Almost surely, 2^1982407216 is an apocalyptic number.

1982407216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1982407216 is a deficient number, since it is larger than the sum of its proper divisors (1903415504).

1982407216 is a wasteful number, since it uses less digits than its factorization.

1982407216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 1982407216 is about 44524.2317845013. The cubic root of 1982407216 is about 1256.2159114666.

The spelling of 1982407216 in words is "one billion, nine hundred eighty-two million, four hundred seven thousand, two hundred sixteen".