330401 has 4 divisors (see below), whose sum is σ = 332592. Its totient is φ = 328212.

The previous prime is 330389. The next prime is 330409. The reversal of 330401 is 104033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330401 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851 + ... + 1176.

It is an arithmetic number, because the mean of its divisors is an integer number (83148).

2³³⁰⁴⁰¹ is an apocalyptic number.

It is an amenable number.

330401 is a deficient number, since it is larger than the sum of its proper divisors (2191).

330401 is a wasteful number, since it uses less digits than its factorization.

330401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190.

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

The square root of 330401 is about 574.8051843886. The cubic root of 330401 is about 69.1322116743.

Adding to 330401 its reverse (104033), we get a palindrome (434434).

The spelling of 330401 in words is "three hundred thirty thousand, four hundred one".