4001333 has 16 divisors (see below), whose sum is σ = 4942080. Its totient is φ = 3163776.

The previous prime is 4001303. The next prime is 4001339. The reversal of 4001333 is 3331004.

It is a happy number.

It is not a de Polignac number, because 4001333 - 2⁶ = 4001269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001339) 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, 4241 + ... + 5097.

It is an arithmetic number, because the mean of its divisors is an integer number (308880).

Almost surely, 2^4001333 is an apocalyptic number.

It is an amenable number.

4001333 is a deficient number, since it is larger than the sum of its proper divisors (940747).

4001333 is a wasteful number, since it uses less digits than its factorization.

4001333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 4001333 is about 2000.3332222407. Note that the first 3 decimals coincide. The cubic root of 4001333 is about 158.7577366184.

Adding to 4001333 its reverse (3331004), we get a palindrome (7332337).

It can be divided in two parts, 4001 and 333, that added together give a palindrome (4334).

The spelling of 4001333 in words is "four million, one thousand, three hundred thirty-three".