4423202421 has 8 divisors (see below), whose sum is σ = 6433749024. Its totient is φ = 2680728720.

The previous prime is 4423202389. The next prime is 4423202423. The reversal of 4423202421 is 1242023244.

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

It is not a de Polignac number, because 4423202421 - 2⁵ = 4423202389 is a prime.

It is a super-2 number, since 2×4423202421² = 39129439314280522482, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4423202391 and 4423202400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4423202423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67018186 + ... + 67018251.

It is an arithmetic number, because the mean of its divisors is an integer number (804218628).

Almost surely, 2^4423202421 is an apocalyptic number.

It is an amenable number.

4423202421 is a deficient number, since it is larger than the sum of its proper divisors (2010546603).

4423202421 is a wasteful number, since it uses less digits than its factorization.

4423202421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134036451.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4423202421 is about 66507.1606746221. The cubic root of 4423202421 is about 1641.5178319872.

Adding to 4423202421 its reverse (1242023244), we get a palindrome (5665225665).

The spelling of 4423202421 in words is "four billion, four hundred twenty-three million, two hundred two thousand, four hundred twenty-one".