30420541 has 4 divisors (see below), whose sum is σ = 30500352. Its totient is φ = 30340732.

The previous prime is 30420529. The next prime is 30420547. The reversal of 30420541 is 14502403.

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-30420541 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 (30420547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39331 + ... + 40096.

It is an arithmetic number, because the mean of its divisors is an integer number (7625088).

Almost surely, 2^30420541 is an apocalyptic number.

It is an amenable number.

30420541 is a deficient number, since it is larger than the sum of its proper divisors (79811).

30420541 is an equidigital number, since it uses as much as digits as its factorization.

30420541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79810.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30420541 is about 5515.4819372381. The cubic root of 30420541 is about 312.1684282637.

Adding to 30420541 its reverse (14502403), we get a palindrome (44922944).

The spelling of 30420541 in words is "thirty million, four hundred twenty thousand, five hundred forty-one".