6424334021 has 4 divisors (see below), whose sum is σ = 7342096032. Its totient is φ = 5506572012.

The previous prime is 6424334009. The next prime is 6424334027. The reversal of 6424334021 is 1204334246.

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 6424334021 - 2²² = 6420139717 is a prime.

It is a super-2 number, since 2×6424334021² = 82544135226756056882, which 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 (6424334027) 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, 458880995 + ... + 458881008.

It is an arithmetic number, because the mean of its divisors is an integer number (1835524008).

Almost surely, 2^6424334021 is an apocalyptic number.

It is an amenable number.

6424334021 is a deficient number, since it is larger than the sum of its proper divisors (917762011).

6424334021 is an equidigital number, since it uses as much as digits as its factorization.

6424334021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917762010.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 6424334021 is about 80151.9433388861. The cubic root of 6424334021 is about 1858.9856515943.

Adding to 6424334021 its reverse (1204334246), we get a palindrome (7628668267).

The spelling of 6424334021 in words is "six billion, four hundred twenty-four million, three hundred thirty-four thousand, twenty-one".