4030985 has 12 divisors (see below), whose sum is σ = 5627268. Its totient is φ = 2763936.

The previous prime is 4030981. The next prime is 4030993. The reversal of 4030985 is 5890304.

It can be written as a sum of positive squares in 2 ways, for example, as 2729104 + 1301881 = 1652^2 + 1141^2 .

It is not a de Polignac number, because 4030985 - 2² = 4030981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4030981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7982 + ... + 8471.

It is an arithmetic number, because the mean of its divisors is an integer number (468939).

Almost surely, 2^4030985 is an apocalyptic number.

It is an amenable number.

4030985 is a deficient number, since it is larger than the sum of its proper divisors (1596283).

4030985 is a wasteful number, since it uses less digits than its factorization.

4030985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16472 (or 16465 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 4030985 is about 2007.7313067241. The cubic root of 4030985 is about 159.1489315632.

The spelling of 4030985 in words is "four million, thirty thousand, nine hundred eighty-five".