30428041 has 4 divisors (see below), whose sum is σ = 34774912. Its totient is φ = 26081172.

The previous prime is 30428039. The next prime is 30428059. The reversal of 30428041 is 14082403.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14082403 = 277 ⋅50839.

It is a cyclic number.

It is not a de Polignac number, because 30428041 - 2¹ = 30428039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30428071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2173425 + ... + 2173438.

It is an arithmetic number, because the mean of its divisors is an integer number (8693728).

Almost surely, 2^30428041 is an apocalyptic number.

It is an amenable number.

30428041 is a deficient number, since it is larger than the sum of its proper divisors (4346871).

30428041 is an equidigital number, since it uses as much as digits as its factorization.

30428041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346870.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 30428041 is about 5516.1617996574. The cubic root of 30428041 is about 312.1940805670.

The spelling of 30428041 in words is "thirty million, four hundred twenty-eight thousand, forty-one".