1980987160 has 32 divisors (see below), whose sum is σ = 4565937600. Its totient is φ = 773067520.

The previous prime is 1980987157. The next prime is 1980987179. The reversal of 1980987160 is 617890891.

It is a congruent number.

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, 602320 + ... + 605599.

It is an arithmetic number, because the mean of its divisors is an integer number (142685550).

Almost surely, 2^1980987160 is an apocalyptic number.

1980987160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1980987160 is an abundant number, since it is smaller than the sum of its proper divisors (2584950440).

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

1980987160 is a wasteful number, since it uses less digits than its factorization.

1980987160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207971 (or 1207967 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 49.

The square root of 1980987160 is about 44508.2819259517. The cubic root of 1980987160 is about 1255.9158851400.

The spelling of 1980987160 in words is "one billion, nine hundred eighty million, nine hundred eighty-seven thousand, one hundred sixty".