4144985 has 16 divisors (see below), whose sum is σ = 5484864. Its totient is φ = 2987712.

The previous prime is 4144981. The next prime is 4145003. The reversal of 4144985 is 5894414.

It is a happy number.

It is not a de Polignac number, because 4144985 - 2² = 4144981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4144981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054 + ... + 3536.

It is an arithmetic number, because the mean of its divisors is an integer number (342804).

Almost surely, 2^4144985 is an apocalyptic number.

It is an amenable number.

4144985 is a deficient number, since it is larger than the sum of its proper divisors (1339879).

4144985 is a wasteful number, since it uses less digits than its factorization.

4144985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544.

The product of its digits is 23040, while the sum is 35.

The square root of 4144985 is about 2035.9236233219. The cubic root of 4144985 is about 160.6352996469.

The spelling of 4144985 in words is "four million, one hundred forty-four thousand, nine hundred eighty-five".