4420302421 has 8 divisors (see below), whose sum is σ = 4607530400. Its totient is φ = 4236640848.

The previous prime is 4420302377. The next prime is 4420302457. The reversal of 4420302421 is 1242030244.

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 4420302421 - 2²³ = 4411913813 is a prime.

It is a super-2 number, since 2×4420302421² = 39078146986196922482, 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 = 4420302392 and 4420302401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420302461) 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, 889071 + ... + 894028.

It is an arithmetic number, because the mean of its divisors is an integer number (575941300).

Almost surely, 2^4420302421 is an apocalyptic number.

It is an amenable number.

4420302421 is a deficient number, since it is larger than the sum of its proper divisors (187227979).

4420302421 is a wasteful number, since it uses less digits than its factorization.

4420302421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783203.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4420302421 is about 66485.3549362565. The cubic root of 4420302421 is about 1641.1590088241.

Adding to 4420302421 its reverse (1242030244), we get a palindrome (5662332665).

The spelling of 4420302421 in words is "four billion, four hundred twenty million, three hundred two thousand, four hundred twenty-one".