1980950 has 12 divisors (see below), whose sum is σ = 3684660. Its totient is φ = 792360.

The previous prime is 1980949. The next prime is 1980983. The reversal of 1980950 is 590891.

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 5 ways as a sum of consecutive naturals, for example, 19760 + ... + 19859.

It is an arithmetic number, because the mean of its divisors is an integer number (307055).

2^1980950 is an apocalyptic number.

1980950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1980950 is a deficient number, since it is larger than the sum of its proper divisors (1703710).

1980950 is a wasteful number, since it uses less digits than its factorization.

1980950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39631 (or 39626 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1980950 is about 1407.4622552665. The cubic root of 1980950 is about 125.5908032132.

The spelling of 1980950 in words is "one million, nine hundred eighty thousand, nine hundred fifty".