4001330 has 16 divisors (see below), whose sum is σ = 7268184. Its totient is φ = 1585920.

The previous prime is 4001303. The next prime is 4001339. The reversal of 4001330 is 331004.

4001330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1819801 + 2181529 = 1349^2 + 1477^2 .

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641 + ... + 2900.

Almost surely, 2^4001330 is an apocalyptic number.

4001330 is a deficient number, since it is larger than the sum of its proper divisors (3266854).

4001330 is a wasteful number, since it uses less digits than its factorization.

4001330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 4001330 is about 2000.3324723655. The cubic root of 4001330 is about 158.7576969422.

Adding to 4001330 its reverse (331004), we get a palindrome (4332334).

The spelling of 4001330 in words is "four million, one thousand, three hundred thirty".