1983530 has 16 divisors (see below), whose sum is σ = 3598560. Its totient is φ = 787152.

The previous prime is 1983523. The next prime is 1983559. The reversal of 1983530 is 353891.

It is a junction number, because it is equal to n+sod(n) for n = 1983493 and 1983502.

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, 677 + ... + 2103.

It is an arithmetic number, because the mean of its divisors is an integer number (224910).

2^1983530 is an apocalyptic number.

1983530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1983530 is a deficient number, since it is larger than the sum of its proper divisors (1615030).

1983530 is a wasteful number, since it uses less digits than its factorization.

1983530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1983530 is about 1408.3785002619. The cubic root of 1983530 is about 125.6453029403.

The spelling of 1983530 in words is "one million, nine hundred eighty-three thousand, five hundred thirty".