4065601 has 16 divisors (see below), whose sum is σ = 4656960. Its totient is φ = 3525120.

The previous prime is 4065599. The next prime is 4065613. The reversal of 4065601 is 1065604.

It is not a de Polignac number, because 4065601 - 2¹ = 4065599 is a prime.

It is a super-2 number, since 2×4065601² = 33058222982402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4065661) 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, 13090 + ... + 13396.

It is an arithmetic number, because the mean of its divisors is an integer number (291060).

Almost surely, 2^4065601 is an apocalyptic number.

4065601 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4065601 is a deficient number, since it is larger than the sum of its proper divisors (591359).

4065601 is a wasteful number, since it uses less digits than its factorization.

4065601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 4065601 is about 2016.3335537554. Note that the first 3 decimals coincide. The cubic root of 4065601 is about 159.6031964193.

The spelling of 4065601 in words is "four million, sixty-five thousand, six hundred one".