4041001 has 4 divisors (see below), whose sum is σ = 4139604. Its totient is φ = 3942400.

The previous prime is 4040989. The next prime is 4041007. The reversal of 4041001 is 1001404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 714025 + 3326976 = 845^2 + 1824^2 .

It is a cyclic number.

It is not a de Polignac number, because 4041001 - 2⁷ = 4040873 is a prime.

It is a Duffinian number.

4041001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4041007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49240 + ... + 49321.

It is an arithmetic number, because the mean of its divisors is an integer number (1034901).

Almost surely, 2^4041001 is an apocalyptic number.

4041001 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4041001 is a deficient number, since it is larger than the sum of its proper divisors (98603).

4041001 is an equidigital number, since it uses as much as digits as its factorization.

4041001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98602.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 4041001 is about 2010.2241168586. The cubic root of 4041001 is about 159.2806377720.

Adding to 4041001 its reverse (1001404), we get a palindrome (5042405).

It can be divided in two parts, 404 and 1001, that multiplied together give a palindrome (404404).

The spelling of 4041001 in words is "four million, forty-one thousand, one".