1980590 has 16 divisors (see below), whose sum is σ = 3680640. Its totient is φ = 766560.

The previous prime is 1980581. The next prime is 1980607. The reversal of 1980590 is 950891.

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, 2885 + ... + 3504.

It is an arithmetic number, because the mean of its divisors is an integer number (230040).

2^1980590 is an apocalyptic number.

1980590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1980590 is a deficient number, since it is larger than the sum of its proper divisors (1700050).

1980590 is a wasteful number, since it uses less digits than its factorization.

1980590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6427.

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

The square root of 1980590 is about 1407.3343597028. The cubic root of 1980590 is about 125.5831948387.

The spelling of 1980590 in words is "one million, nine hundred eighty thousand, five hundred ninety".