421441430 has 8 divisors (see below), whose sum is σ = 758594592. Its totient is φ = 168576568.

The previous prime is 421441421. The next prime is 421441439. The reversal of 421441430 is 34144124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (421441421) and next prime (421441439).

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

It is a super-2 number, since 2×421441430² = 355225757840889800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421441396 and 421441405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421441439) 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 3 ways as a sum of consecutive naturals, for example, 21072062 + ... + 21072081.

It is an arithmetic number, because the mean of its divisors is an integer number (94824324).

Almost surely, 2^421441430 is an apocalyptic number.

421441430 is a deficient number, since it is larger than the sum of its proper divisors (337153162).

421441430 is a wasteful number, since it uses less digits than its factorization.

421441430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42144150.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 421441430 is about 20529.0387013128. The cubic root of 421441430 is about 749.7429815617.

Adding to 421441430 its reverse (34144124), we get a palindrome (455585554).

The spelling of 421441430 in words is "four hundred twenty-one million, four hundred forty-one thousand, four hundred thirty".