30421441 has 4 divisors (see below), whose sum is σ = 30849984. Its totient is φ = 29992900.

The previous prime is 30421427. The next prime is 30421459. The reversal of 30421441 is 14412403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30421441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30421411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214165 + ... + 214306.

It is an arithmetic number, because the mean of its divisors is an integer number (7712496).

Almost surely, 2^30421441 is an apocalyptic number.

It is an amenable number.

30421441 is a deficient number, since it is larger than the sum of its proper divisors (428543).

30421441 is an equidigital number, since it uses as much as digits as its factorization.

30421441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428542.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 30421441 is about 5515.5635251532. The cubic root of 30421441 is about 312.1715067627.

Adding to 30421441 its reverse (14412403), we get a palindrome (44833844).

The spelling of 30421441 in words is "thirty million, four hundred twenty-one thousand, four hundred forty-one".