30442241 has 4 divisors (see below), whose sum is σ = 30859332. Its totient is φ = 30025152.

The previous prime is 30442219. The next prime is 30442259. The reversal of 30442241 is 14224403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14224403 = 103 ⋅138101.

It can be written as a sum of positive squares in 2 ways, for example, as 19360000 + 11082241 = 4400^2 + 3329^2 .

It is a cyclic number.

It is not a de Polignac number, because 30442241 - 2⁶ = 30442177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30442201) 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, 208436 + ... + 208581.

It is an arithmetic number, because the mean of its divisors is an integer number (7714833).

Almost surely, 2^30442241 is an apocalyptic number.

It is an amenable number.

30442241 is a deficient number, since it is larger than the sum of its proper divisors (417091).

30442241 is an equidigital number, since it uses as much as digits as its factorization.

30442241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417090.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 30442241 is about 5517.4487763821. The cubic root of 30442241 is about 312.2426373845.

Adding to 30442241 its reverse (14224403), we get a palindrome (44666644).

The spelling of 30442241 in words is "thirty million, four hundred forty-two thousand, two hundred forty-one".