30872241 has 6 divisors (see below), whose sum is σ = 44593250. Its totient is φ = 20581488.

The previous prime is 30872201. The next prime is 30872251. The reversal of 30872241 is 14227803.

It can be written as a sum of positive squares in only one way, i.e., 25040016 + 5832225 = 5004^2 + 2415^2 .

It is not a de Polignac number, because 30872241 - 2⁷ = 30872113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30872201) 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 5 ways as a sum of consecutive naturals, for example, 1715116 + ... + 1715133.

Almost surely, 2^30872241 is an apocalyptic number.

It is an amenable number.

30872241 is a deficient number, since it is larger than the sum of its proper divisors (13721009).

30872241 is a wasteful number, since it uses less digits than its factorization.

30872241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430255 (or 3430252 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 30872241 is about 5556.2794206195. The cubic root of 30872241 is about 313.7059230262.

It can be divided in two parts, 30872 and 241, that added together give a palindrome (31113).

The spelling of 30872241 in words is "thirty million, eight hundred seventy-two thousand, two hundred forty-one".