4223340421 has 8 divisors (see below), whose sum is σ = 4240836288. Its totient is φ = 4205880000.

The previous prime is 4223340371. The next prime is 4223340427. The reversal of 4223340421 is 1240433224.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4223340421 - 2¹³ = 4223332229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223340427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244686 + ... + 261376.

It is an arithmetic number, because the mean of its divisors is an integer number (530104536).

Almost surely, 2^4223340421 is an apocalyptic number.

It is an amenable number.

4223340421 is a deficient number, since it is larger than the sum of its proper divisors (17495867).

4223340421 is a wasteful number, since it uses less digits than its factorization.

4223340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17723.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4223340421 is about 64987.2327538263. The cubic root of 4223340421 is about 1616.4118650732.

Adding to 4223340421 its reverse (1240433224), we get a palindrome (5463773645).

The spelling of 4223340421 in words is "four billion, two hundred twenty-three million, three hundred forty thousand, four hundred twenty-one".