1980108 has 36 divisors (see below), whose sum is σ = 5391568. Its totient is φ = 609120.

The previous prime is 1980103. The next prime is 1980113. The reversal of 1980108 is 8010891.

It is an interprime number because it is at equal distance from previous prime (1980103) and next prime (1980113).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1980101) 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, 1648 + ... + 2583.

2^1980108 is an apocalyptic number.

1980108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1980108 is an abundant number, since it is smaller than the sum of its proper divisors (3411460).

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

1980108 is a wasteful number, since it uses less digits than its factorization.

1980108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1980108 is about 1407.1631035527. The cubic root of 1980108 is about 125.5730066269.

Adding to 1980108 its reverse (8010891), we get a palindrome (9990999).

The spelling of 1980108 in words is "one million, nine hundred eighty thousand, one hundred eight".