1980594 has 48 divisors (see below), whose sum is σ = 5353920. Its totient is φ = 514080.

The previous prime is 1980581. The next prime is 1980607. The reversal of 1980594 is 4950891.

It is an interprime number because it is at equal distance from previous prime (1980581) and next prime (1980607).

1980594 is a modest number, since divided by 594 gives 198 as remainder.

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 23 ways as a sum of consecutive naturals, for example, 672 + ... + 2100.

It is an arithmetic number, because the mean of its divisors is an integer number (111540).

2^1980594 is an apocalyptic number.

1980594 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2676960).

1980594 is an abundant number, since it is smaller than the sum of its proper divisors (3373326).

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

1980594 is a wasteful number, since it uses less digits than its factorization.

1980594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1980594 is about 1407.3357808284. The cubic root of 1980594 is about 125.5832793812.

The spelling of 1980594 in words is "one million, nine hundred eighty thousand, five hundred ninety-four".