1980050 has 18 divisors (see below), whose sum is σ = 3701493. Its totient is φ = 788040.

The previous prime is 1980031. The next prime is 1980053. The reversal of 1980050 is 500891.

It can be written as a sum of positive squares in 2 ways, for example, as 1940449 + 39601 = 1393^2 + 199^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=995.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 1979998 and 1980025.

It is not an unprimeable number, because it can be changed into a prime (1980053) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 9851 + ... + 10049.

2^1980050 is an apocalyptic number.

1980050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1980050 is a deficient number, since it is larger than the sum of its proper divisors (1721443).

1980050 is an equidigital number, since it uses as much as digits as its factorization.

1980050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1980050 is about 1407.1424945612. The cubic root of 1980050 is about 125.5717805481.

The spelling of 1980050 in words is "one million, nine hundred eighty thousand, fifty".