330440242421 has 4 divisors (see below), whose sum is σ = 330447806112. Its totient is φ = 330432678732.

The previous prime is 330440242417. The next prime is 330440242427. The reversal of 330440242421 is 124242044033.

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 not a de Polignac number, because 330440242421 - 2² = 330440242417 is a prime.

It is a super-2 number, since 2×330440242421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330440242427) 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, 3715931 + ... + 3803816.

It is an arithmetic number, because the mean of its divisors is an integer number (82611951528).

Almost surely, 2^330440242421 is an apocalyptic number.

It is an amenable number.

330440242421 is a deficient number, since it is larger than the sum of its proper divisors (7563691).

330440242421 is an equidigital number, since it uses as much as digits as its factorization.

330440242421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7563690.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 330440242421 its reverse (124242044033), we get a palindrome (454682286454).

The spelling of 330440242421 in words is "three hundred thirty billion, four hundred forty million, two hundred forty-two thousand, four hundred twenty-one".