1980508 has 12 divisors (see below), whose sum is σ = 3490200. Its totient is φ = 983312.

The previous prime is 1980491. The next prime is 1980521. The reversal of 1980508 is 8050891.

It is a self number, because there is not a number n which added to its sum of digits gives 1980508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066 + ... + 2257.

It is an arithmetic number, because the mean of its divisors is an integer number (290850).

2^1980508 is an apocalyptic number.

It is an amenable number.

1980508 is a deficient number, since it is larger than the sum of its proper divisors (1509692).

1980508 is a wasteful number, since it uses less digits than its factorization.

1980508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1980508 is about 1407.3052263102. The cubic root of 1980508 is about 125.5814616911.

The spelling of 1980508 in words is "one million, nine hundred eighty thousand, five hundred eight".