1985330 has 8 divisors (see below), whose sum is σ = 3573612. Its totient is φ = 794128.

The previous prime is 1985317. The next prime is 1985363. The reversal of 1985330 is 335891.

It can be written as a sum of positive squares in 2 ways, for example, as 1985281 + 49 = 1409^2 + 7^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1985293 and 1985302.

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 3 ways as a sum of consecutive naturals, for example, 99257 + ... + 99276.

2^1985330 is an apocalyptic number.

1985330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1985330 is a deficient number, since it is larger than the sum of its proper divisors (1588282).

1985330 is a wasteful number, since it uses less digits than its factorization.

1985330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198540.

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

The square root of 1985330 is about 1409.0173881113. The cubic root of 1985330 is about 125.6832980245.

The spelling of 1985330 in words is "one million, nine hundred eighty-five thousand, three hundred thirty".