4062009 has 16 divisors (see below), whose sum is σ = 6284288. Its totient is φ = 2285712.

The previous prime is 4061999. The next prime is 4062013. The reversal of 4062009 is 9002604.

It is not a de Polignac number, because 4062009 - 2⁵ = 4061977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4062089) 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, 37 + ... + 2850.

It is an arithmetic number, because the mean of its divisors is an integer number (392768).

Almost surely, 2^4062009 is an apocalyptic number.

It is an amenable number.

4062009 is a deficient number, since it is larger than the sum of its proper divisors (2222279).

4062009 is a wasteful number, since it uses less digits than its factorization.

4062009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4062009 is about 2015.4426312848. The cubic root of 4062009 is about 159.5561788851.

It can be divided in two parts, 406 and 2009, that added together give a triangular number (2415 = T₆₉).

The spelling of 4062009 in words is "four million, sixty-two thousand, nine".