4214431021 has 8 divisors (see below), whose sum is σ = 4436968320. Its totient is φ = 3991966272.

The previous prime is 4214430971. The next prime is 4214431049. The reversal of 4214431021 is 1201344124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4214431021 - 2⁷ = 4214430893 is a prime.

It is a super-2 number, since 2×4214431021² = 35522857661534204882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4214430983 and 4214431001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4214431321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133836 + ... + 162298.

It is an arithmetic number, because the mean of its divisors is an integer number (554621040).

Almost surely, 2^4214431021 is an apocalyptic number.

It is an amenable number.

4214431021 is a deficient number, since it is larger than the sum of its proper divisors (222537299).

4214431021 is a wasteful number, since it uses less digits than its factorization.

4214431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36275.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4214431021 is about 64918.6492542782. The cubic root of 4214431021 is about 1615.2744243190.

Adding to 4214431021 its reverse (1201344124), we get a palindrome (5415775145).

The spelling of 4214431021 in words is "four billion, two hundred fourteen million, four hundred thirty-one thousand, twenty-one".