1980248218 has 16 divisors (see below), whose sum is σ = 3230538696. Its totient is φ = 904910400.

The previous prime is 1980248161. The next prime is 1980248323. The reversal of 1980248218 is 8128420891.

It can be written as a sum of positive squares in 4 ways, for example, as 1811949489 + 168298729 = 42567^2 + 12973^2 .

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, 374421 + ... + 379672.

Almost surely, 2^1980248218 is an apocalyptic number.

1980248218 is a deficient number, since it is larger than the sum of its proper divisors (1250290478).

1980248218 is a wasteful number, since it uses less digits than its factorization.

1980248218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754209.

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 1980248218 is about 44499.9799775236. The cubic root of 1980248218 is about 1255.7597063703.

It can be divided in two parts, 19802482 and 18, that added together give a square (19802500 = 4450²).

The spelling of 1980248218 in words is "one billion, nine hundred eighty million, two hundred forty-eight thousand, two hundred eighteen".